Best Intake Option?

[freed]

I have been looking a the various silicone and carbon fibre intakes for my 2014 S4.

Wondering if people a any opinions regarding performance, sound, etc. from the different manufacturers?

Thanks in advance,

f

[gmurom]

Heard this one is good. Waiting for sale or if somebody decide to sale it.

https://www.performancebyie.com/ie-b8-s4-cold-air-intake

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[freed]

That is a petty nice looking intake and at a reasonable price.

One question/concern though..i have read that that the accordion type bends do not allow as much air flow as smooth ones. Thoughts?

[BlackJon]

I got Roc Euro Intake and I love everything about it.. the sound and easy install

Drive it like you stole it 😎

[Johnnah_Daia]

+1 for Roc-Euro [emoji106]
Started out with an Eurocode just because of price, but then moved to Roc-Euro 6 months later and love everything about it! The sound of the supercharger can be a bit obnoxious at times...but I'm so dam addicted to it lol

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[bhvrdr]

If you like the roc euro just get the cts turbo. It is identical except has better heat shield mounts to the car and a nice little billet emission filter attachment. Plus their customer service doesnt make a habit of lying to customers about stock levels and stringing them along until threats of chargebacks are made


Mike

[14S4GWM]

If you like the roc euro just get the cts turbo. It is identical except has better heat shield mounts to the car and a nice little billet emission filter attachment. Plus their customer service doesnt make a habit of lying to customers about stock levels and stringing them along until threats of chargebacks are made


Mike

All of this is correct and ECS offers some really nice pieces also. Screw ROC

[A.C.]

All of this is correct and ECS offers some really nice pieces also. Screw ROC

I agree with Mike and 14S4GWM. I have the CTS intake and love it. I would also recommend applying a rubber hose to cover the air condenser line. It does have a tendency to rub under vibration


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[rcz22]

I have the ECS carbon fiber intake and couldn't be happier.

[TexasDfwS4]

Bang for buck just drill some 2" holes in the lower half of your factory box and save your money.

[Corradobrit]

Bang for buck just drill some 2" holes in the lower half of your factory box and save your money.

Best option for anyone with a warranty. Stealth mode

[jonwoods]

The stock intake is about as performant as you’re going to get. Pull the top off the factory box and go for a spin to get an idea of what it’s like to live with copious supercharger whine... Some dig it. I find it annoying honestly.

[brs2c]

The better the heat shield, the better the intake. Hot air IS the #1 performance issue on these cars. This is why some of the fastest cars run a modified versions of the stock intake.

[SteveYem]

The better the heat shield, the better the intake. Hot air IS the #1 performance issue on these cars. This is why some of the fastest cars run a modified versions of the stock intake.

I'd like to go the modified stock airbox route, but looking at the price of used stock airboxes and the idea of irreversibly modifying mine led me to an aftermarket intake system. If I could find an OEM airbox on the cheap, I'd likely go that route.

Slightly off topic, but recently for shits and giggs I ran the stock intake tube with an aftermarket open element filter (i.e. not with the stock airbox), and there was as little supercharger whine as if I had the complete stock intake system installed. I guess all of the silencing is done by the tube, not by the box. I was surprised.

[MSq5]

I'd like to go the modified stock airbox route, but looking at the price of used stock airboxes and the idea of irreversibly modifying mine led me to an aftermarket intake system. If I could find an OEM airbox on the cheap, I'd likely go that route.

Slightly off topic, but recently for shits and giggs I ran the stock intake tube with an aftermarket open element filter (i.e. not with the stock airbox), and there was as little supercharger whine as if I had the complete stock intake system installed. I guess all of the silencing is done by the tube, not by the box. I was surprised.

We are just talking about one 2-3/8" circular hole in a molded area in the bottom of the stock air box that coincides with a circular pattern located there. This modification is invisible. You could plug it later, if you don't like it. Some drill more/larger holes. I don't think that has been shown to increase flow very much.

Just do that 2-3/8" hole, add a high flow pleated filter of your choice, the 034 silicone throttle body tube and call it a day. No aftermarket setup will flow better and is likely to be worse if it does not isolate the filter from engine heat.

And, yes, there is a resonator built into the stock tube that is used to cancel out most of the whistle sound.

[ST3]

Love my CTS Turbo intake.

[TTreef]

Looking at intakes currently. Will the CTS mate up to an APR ultracharger without a problem, or would additional jerry rigging/parts be needed?

[ModdedEuros]

CTS Turbo is our top seller especially with the sale right now. A lot of the open intakes are very similar.

https://s3.amazonaws.com/moddedeuros-prod/spree/products/6330/large/106295.png?1482961518

(https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300)https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300

[TTreef]

CTS Turbo is our top seller especially with the sale right now. A lot of the open intakes are very similar.

https://s3.amazonaws.com/moddedeuros-prod/spree/products/6330/large/106295.png?1482961518

(https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300)https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300

Will it work with the APR Ultracharger? From the looks of it, I would have to cut the tube..

[AudiS4SD]

Looking to get an intake soon...with a couple questions:

I think ECS will be too loud for me (don't want obnoxious when just commuting) so I think that one is out. Roc Euro is out due to their horrible customer service. So I'm currently eyeing CTS vs. IE. Thoughts? Does metal vs. silicon tube make any difference on an otherwise stock vehicle? I THINK the CTS intake is a bit louder than IE from what I've read here, but not sure. Every ear is different, lol.

Also, newbie modder question: once the intake is installed, do you have to mess with the ECU at all for different airflow/fuel tuning or just plug-and-play?

[Morritse]

The fastest S4 on this forum (I guess it's an s5 but same thing, loe's)
Used a ported stock airbox and silicone inlet hose. I honestly think that's the way to go, plus no emissions bullshit.

[kwik_shift]

Looking to get an intake soon...with a couple questions:

I think ECS will be too loud for me (don't want obnoxious when just commuting) so I think that one is out. Roc Euro is out due to their horrible customer service. So I'm currently eyeing CTS vs. IE. Thoughts? Does metal vs. silicon tube make any difference on an otherwise stock vehicle? I THINK the CTS intake is a bit louder than IE from what I've read here, but not sure. Every ear is different, lol.

Also, newbie modder question: once the intake is installed, do you have to mess with the ECU at all for different airflow/fuel tuning or just plug-and-play?

plug-and-play

[audigsr]

Looking to get an intake soon...with a couple questions:

I think ECS will be too loud for me (don't want obnoxious when just commuting) so I think that one is out. Roc Euro is out due to their horrible customer service. So I'm currently eyeing CTS vs. IE. Thoughts? Does metal vs. silicon tube make any difference on an otherwise stock vehicle? I THINK the CTS intake is a bit louder than IE from what I've read here, but not sure. Every ear is different, lol.

Also, newbie modder question: once the intake is installed, do you have to mess with the ECU at all for different airflow/fuel tuning or just plug-and-play?

Pretty sure the ECS will be one of the quieter ones since the filter element isn't exposed like the others. Heard from other members that the videos make it seem louder than it really is.

[sciprox]

Is the carbon fiber ecs intake louder than the plastic one?

[lockon]

CTS Turbo is our top seller especially with the sale right now. A lot of the open intakes are very similar.

https://s3.amazonaws.com/moddedeuros-prod/spree/products/6330/large/106295.png?1482961518

(https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300)https://www.moddedeuros.com/products/cts-turbo-air-intake-system-cts-it-300

I am confused about one thing: People keep saying that isolating the intake from the hot engine bay is the most important thing (makes sense).... however, this picture seems to show a cheap looking piece of metal to separate the intake from the engine bay with plenty of space to allow HOT air back into the filter... what gives?
Thanks

[MSq5]

The stock air box is a true cold air intake system, drawing air from the outside through the front grill. You can increase flow potential by drilling hole(s) on the bottom of the front headlight side of that box. This is away from the engine.

The stock filter flows quite well, but a study posted elsewhere here shows that some aftermarket filters like the dual cone aFe Pro 5R flow better, and that the stock throttle body tube can be improved upon by using reinforced smooth sided tubes, like the silicone one made by 034.

There are guys like one of our moderators here that are running in the high 10 second quarter mile with the stock airbox set up this way. Those are the most highly modified cars. They must be making over 600 horsepower to produce those numbers.

I think every other approach is interesting and may produce different subjective sounds, and have different visual appeal, if that is what you are looking for, but I seriously doubt that they improve on actual performance compared to the simple air box mod, stiff, smooth throttle body tube and a high flow drop in filter in the stock airbox.

[John@IE]

Our intake will be on sale soon ;)

[Ford Prefect]

Is the carbon fiber ecs intake louder than the plastic one?

I just bought the ECS with CF top. It’s still loud, is open underneath except for heat shield. If we’re talking the same thing I can show some pics.

I had the roc euro too and I do think it was indeed louder. But if you stock from ECS it will seem very loud.


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[jorte014]

I like the USP motorsports one. It sounds great and isn't terribly expensive.

https://www.uspmotorsports.com/USP-Motorsports-Audi-B8-S4-3.0T-3.2L-Intake-System-w-Heat-Shield.html

See it in action here:
https://youtu.be/-uZFkUnM4kI

[Gberg888]

Our intake will be on sale soon ;)

OOOO When??

[John@IE]

OOOO When??

Not entirely sure. I'm somewhat familiar with the IE guys though and I think I heard word that a sale will be happening during Labor Day Weekend.

Lol [>_<]

[gmurom]

Not entirely sure. I'm somewhat familiar with the IE guys though and I think I heard word that a sale will be happening during Labor Day Weekend.

Lol [>_<]What stats you are getting with your Intake at stage 1 vs OEM?

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[freed]

settled on this:

https://c1552172.ssl.cf0.rackcdn.com/775870_x600.jpg

[XLR8 Craig]

APR has an open element intake setup for these cars as well!

With a 7" filter and a carbon fiber heat shield to keep IATs down, this intake is a great way to help the car breathe easier and gain up to 17hp!

https://preview.ibb.co/cZMf09/F95738.jpg

We have them in stock ready to ship! You can find them on our online store here (https://xlr8performance.com/i-37463-apr-open-carbon-fiber-intake-system.html?ref=search:https%3A%2F%2Fxlr8performan ce.com%2Fsearch.html%3Fq%3DCI100037%26Search%3DSea rch).

Feel free to send us a PM for pricing!

[AudiS4SD]

Newbie question: what are the pros and cons on a closed vs open intake setup?

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[John@IE]

What stats you are getting with your Intake at stage 1 vs OEM?

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https://www.performancebyie.com/ie-b8-s4-cold-air-intake

Charts show Stage 2 WHP from 362 to 383 with the stock intake being swapped with our intake.

Unfortunately I don't have anything stage 1 related in terms of charts but it'd be damn close to that same number difference.

[Morritse]

Newbie question: what are the pros and cons on a closed vs open intake setup?

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Closed: better IATs. Which is a huge deal on these cars. Also, if you use the stock airbox, you won't get any shit trying to get through visual inspection.

Open: more flow, better sound, easier to clean filter, looks better (to most)

Personally I think closed it better just due to how big of a problem IATs are on our platform.

[AudiS4SD]

Closed: better IATs. Which is a huge deal on these cars. Also, if you use the stock airbox, you won't get any shit trying to get through visual inspection.

Open: more flow, better sound, easier to clean filter, looks better (to most)

Personally I think closed it better just due to how big of a problem IATs are on our platform.Thanks!

So if I want to get more whine, can any of these intake systems get covered by the stock airbox (but this probably defeats the purpose) ? Or, to get the whine I need to go full open and reinstall stock intake before going to the dealer (which I know some on here do)?

If living in a hot climate like NV, would going open intake just cause issues in the high heat?

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[Morritse]

Thanks!

So if I want to get more whine, can any of these intake systems get covered by the stock airbox (but this probably defeats the purpose) ? Or, to get the whine I need to go full open and reinstall stock intake before going to the dealer (which I know some on here do)?

If living in a hot climate like NV, would going open intake just cause issues in the high heat?

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This is me on a ported stock airbox, AFE filter, and 034 boost noodle

https://youtu.be/_4ZGXaJdAFY

[MSq5]

Thanks!

So if I want to get more whine, can any of these intake systems get covered by the stock airbox (but this probably defeats the purpose) ? Or, to get the whine I need to go full open and reinstall stock intake before going to the dealer (which I know some on here do)?

If living in a hot climate like NV, would going open intake just cause issues in the high heat?

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The stock throttle body tube that runs from the stock air box to the throttle body has a resonator device built into it that purposefully cancels out most of the supercharger whine. Simply replacing that tube with a straight more rigid tube (several different manufacturers make these), like the 034 reinforced silicone tube that I and many others use, eliminates that resonator. You will then hear the supercharger whine. That tube is a good investment and depending on construction costs about $100, sometimes less when on sale.

That mod alone, simply replacing the stock throttle body tube, may make all the "whine" you want, if that is what you are going for.

The more rigid tube is also less likely to collapse under maximum air draw during high boost, and will provide less air turbulence entering the throttle body than the accordion style stock part.

[AudiS4SD]

The stock throttle body tube that runs from the stock air box to the throttle body has a resonator device built into it that purposefully cancels out most of the supercharger whine. Simply replacing that tube with a straight more rigid tube (several different manufacturers make these), like the 034 reinforced silicone tube that I and many others use, eliminates that resonator. You will then hear the supercharger whine. That tube is a good investment and depending on construction costs about $100, sometimes less when on sale.

That mod alone, simply replacing the stock throttle body tube, may make all the "whine" you want, if that is what you are going for.

The more rigid tube is also less likely to collapse under maximum air draw during high boost, and will provide less air turbulence entering the throttle body than the accordion style stock part.

That clarifies nicely--thank you. I don't particularly need a full intake setup, just looking for some more sound. If you can use the 034 tube and still have the stock airbox, that sounds like what I'm looking for. This is the part, correct? 034 Tube (https://store.034motorsport.com/silicone-throttle-body-inlet-hose-high-flow-b8-audi-s4-s5-3-0tfsi.html)

I know it's subjective, but how much louder is the whine? Does it still sound somewhat muffled or is it noticeable (obviously not as loud as a full intake swap)?

[Morritse]

That clarifies nicely--thank you. I don't particularly need a full intake setup, just looking for some more sound. If you can use the 034 tube and still have the stock airbox, that sounds like what I'm looking for. This is the part, correct? 034 Tube (https://store.034motorsport.com/silicone-throttle-body-inlet-hose-high-flow-b8-audi-s4-s5-3-0tfsi.html)

I know it's subjective, but how much louder is the whine? Does it still sound somewhat muffled or is it noticeable (obviously not as loud as a full intake swap)?

I posted a video for you...

[AudiS4SD]

I posted a video for you...My bad, just went to the last post. [emoji23]

Sounds pretty good...not obnoxious.

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[gmurom]

The more rigid tube is also less likely to collapse under maximum air draw during high boost, and will provide less air turbulence entering the throttle body than the accordion style stock part.

Great explanations!

But the stock tube is more rigid than the 034's one. Correct? So, is it still better in this case? Or the best one would be made of carbon fiber or smth similar?



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[ne day]

I just purchased a CTS Turbo Intake a few months ago on eBay for like 200 on best offer and installed it in under 30 min. It sounds really nice,

[vitopat]

I’m running the Injen intake. It’s built very nicely but I wish it was a little louder.


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[AudiS4SD]

This is me on a ported stock airbox, AFE filter, and 034 boost noodle

https://youtu.be/_4ZGXaJdAFY

How did you "port" the airbox?

[JJI]

How did you "port" the airbox?

Many do this

http://a68.tinypic.com/28sa1if.jpg


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[brs2c]

Her is my custom setup, and the heat shield is on page 2

Custom velocity stack intake-no welding
https://www.audizine.com/forum/showthread.php?t=793539


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[freed]

settled on this:

https://c1552172.ssl.cf0.rackcdn.com/775870_x600.jpg

Keep in mind that all stated intake (diagnostic) HP gains from the manufacturers typically include stage 2 tuning to realize any HP gains

[AudiS4SD]

Many do this

http://a68.tinypic.com/28sa1if.jpg


Sent from my iPhone using TapatalkIs porting completely necessary or would that defeat part of the reason to do a closed setup?

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[A.Bruno6]

https://www.ecstuning.com/b-ecs-parts/luft-technik-intake-system-silicone-inlet/007344ecs01kt/

I've had this exhaust pretty much since they released it and have never looked back. If you like supercharger whine, this is the best option IMO. Also, can upgrade to carbon fibre inlet instead of silicone.

[A.Bruno6]

settled on this:

https://c1552172.ssl.cf0.rackcdn.com/775870_x600.jpg

Oops, I missed this post. Looks like you picked wisely anyways! Cheers!

[JJI]

Here’s where I am currently. A-little to much SC whine for me. I may go to a stock modded box like I posted above. Giving it more time

https://uploads.tapatalk-cdn.com/20180829/9a18f7c38fcccb21aecebe305be7f56c.jpg



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[JJI]

Is porting completely necessary or would that defeat part of the reason to do a closed setup?

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Its not necessary just folks wanting a-little more. One of if not the fastest car on this forums runs his airbox this way. This is a picture of loes


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[doughboy17]

That clarifies nicely--thank you. I don't particularly need a full intake setup, just looking for some more sound. If you can use the 034 tube and still have the stock airbox, that sounds like what I'm looking for. This is the part, correct? 034 Tube (https://store.034motorsport.com/silicone-throttle-body-inlet-hose-high-flow-b8-audi-s4-s5-3-0tfsi.html)

I know it's subjective, but how much louder is the whine? Does it still sound somewhat muffled or is it noticeable (obviously not as loud as a full intake swap)?

MSq5's setup, which includes a silicone inlet hose and AFE filter, is slightly louder even if you do not port the airbox. I am running this setup (without porting the airbox) and I encourage you to give it 1-2 months to break in before making a decision to port the box. The sound difference is subtle but it is there, and I have noticed that it seems to be getting louder the more miles I put on it.

The true cold air (exposed) intakes are too loud for me. If the silicone tube plus higher flow filter in the stock airbox is not loud enough for you, you can always port the stock airbox later. I do recommend that you have someone drive your car for a few passes by you when you are outside the car. The volume level is different outside vs. being inside the car.

[AudiS4SD]

MSq5's setup, which includes a silicone inlet hose and AFE filter, is slightly louder even if you do not port the airbox. I am running this setup (without porting the airbox) and I encourage you to give it 1-2 months to break in before making a decision to port the box. The sound difference is subtle but it is there, and I have noticed that it seems to be getting louder the more miles I put on it.

The true cold air (exposed) intakes are too loud for me. If the silicone tube plus higher flow filter in the stock airbox is not loud enough for you, you can always port the stock airbox later. I do recommend that you have someone drive your car for a few passes by you when you are outside the car. The volume level is different outside vs. being inside the car.

Thank you for the information. I think I will go this route initially and see how I like it. If it's still not what I want, then I can move on to an open system. Plus, at least initially, it will be easier to swap to full stock before going in for service as well.

This is the filter you are using, correct? AFE 11-10121 Dry (https://www.amazon.com/dp/B00727FGEE/?coliid=I2DISA892WUE7M&colid=1FVSSIHLXUB5I&psc=0&ref_=lv_ov_lig_dp_it)

EDIT: Actually, looked up MSq5's filter and saw he used a slightly different part number. Looks like the difference is dry vs pre-oiled. I think I read on here though that pre-oiled was not preferred. AFE 10-10121 (https://www.amazon.com/aFe-10-10121-Magnum-Replacement-Filter/dp/B00727FG9O/ref=sr_1_1?s=automotive&ie=UTF8&qid=1535553838&sr=1-1&keywords=afe+10-10121&dpID=51nA9naXfnL&preST=_SX300_QL70_&dpSrc=srch)

[doughboy17]

Thank you for the information. I think I will go this route initially and see how I like it. If it's still not what I want, then I can move on to an open system. Plus, at least initially, it will be easier to swap to full stock before going in for service as well.

This is the filter you are using, correct? AFE 11-10121 Dry (https://www.amazon.com/dp/B00727FGEE/?coliid=I2DISA892WUE7M&colid=1FVSSIHLXUB5I&psc=0&ref_=lv_ov_lig_dp_it)

EDIT: Actually, looked up MSq5's filter and saw he used a slightly different part number. Looks like the difference is dry vs pre-oiled. I think I read on here though that pre-oiled was not preferred. AFE 10-10121 (https://www.amazon.com/aFe-10-10121-Magnum-Replacement-Filter/dp/B00727FG9O/ref=sr_1_1?s=automotive&ie=UTF8&qid=1535553838&sr=1-1&keywords=afe+10-10121&dpID=51nA9naXfnL&preST=_SX300_QL70_&dpSrc=srch)

Yes, I am using the dry filter. I think either one will be fine. I simply wanted to be able to take an air hose to the filter to refresh it. Didn't want to deal with oiling it. Never thought my setup would throw up TD1 flags at the dealership; I need to "feel out" my Service Advisor to see if the dealership would overlook this type of mod.

[AudiS4SD]

Yes, I am using the dry filter. I think either one will be fine. I simply wanted to be able to take an air hose to the filter to refresh it. Didn't want to deal with oiling it. Never thought my setup would throw up TD1 flags at the dealership; I need to "feel out" my Service Advisor to see if the dealership would overlook this type of mod.

Makes sense; I will go with the dry filter. Regarding the dealer, I'm not sure it would even be flagged, but I think I would swap everything just to be sure.

[MSq5]

That clarifies nicely--thank you. I don't particularly need a full intake setup, just looking for some more sound. If you can use the 034 tube and still have the stock airbox, that sounds like what I'm looking for. This is the part, correct? 034 Tube (https://store.034motorsport.com/silicone-throttle-body-inlet-hose-high-flow-b8-audi-s4-s5-3-0tfsi.html)

I know it's subjective, but how much louder is the whine? Does it still sound somewhat muffled or is it noticeable (obviously not as loud as a full intake swap)?

Yes. That's the one.

[MSq5]

Great explanations!

But the stock tube is more rigid than the 034's one. Correct? So, is it still better in this case? Or the best one would be made of carbon fiber or smth similar?



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The 034 silicone tube is reinforced. It is VERY stiff. I'm not sure what they put between the layers, maybe steel, but it is extremely rigid. The stock tube is thin walled, flexible, and can actually compress and reduce inside diameter when the supercharger is at high boost. The rigidity of the 034 is one if its benefits. It is so stiff you will struggle a bit in getting it over the throttle body and the air box ends, thinking it doesn't fit. It does, but you have to work with it.

[MSq5]

Thank you for the information. I think I will go this route initially and see how I like it. If it's still not what I want, then I can move on to an open system. Plus, at least initially, it will be easier to swap to full stock before going in for service as well.

This is the filter you are using, correct? AFE 11-10121 Dry (https://www.amazon.com/dp/B00727FGEE/?coliid=I2DISA892WUE7M&colid=1FVSSIHLXUB5I&psc=0&ref_=lv_ov_lig_dp_it)

EDIT: Actually, looked up MSq5's filter and saw he used a slightly different part number. Looks like the difference is dry vs pre-oiled. I think I read on here though that pre-oiled was not preferred. AFE 10-10121 (https://www.amazon.com/aFe-10-10121-Magnum-Replacement-Filter/dp/B00727FG9O/ref=sr_1_1?s=automotive&ie=UTF8&qid=1535553838&sr=1-1&keywords=afe+10-10121&dpID=51nA9naXfnL&preST=_SX300_QL70_&dpSrc=srch)

The oiled cotton gauze one flowed considerably better than stock in a comparison test in another thread, (see link) so I selected that, but if the dry flow version flows somewhat less, that may not be enough difference to really matter.

https://www.audizine.com/forum/showthread.php/662759-Significant-gain-with-just-an-AFE-Pro-5R-filter-drop-in

[doughboy17]

The rigidity of the 034 is one if its benefits. It is so stiff you will struggle a bit in getting it over the throttle body and the air box ends, thinking it doesn't fit. It does, but you have to work with it.

Yep, my 17 year old suggested spraying some WD40 on a cloth and wiping the end and inside lip of the silicone tube after I had struggled for 10-15 min. -- BINGO! I'm not sure when we would have gotten it on, otherwise. Mad props to him! We werre successful first attaching it via the clamp to the air box, then working it into position on the intake manifold.

[AudiS4SD]

So I went ahead and installed the 034 tube + AFE filter this morning. There is ZERO change in noise, not even a little. Not what I was looking for in a closed system. I figured from the comments here and the fact that the stock tube has a resonator that I would at least get like 5% increase in sound. Nope.

Guess it's on to open intake...

[doughboy17]

So I went ahead and installed the 034 tube + AFE filter this morning. There is ZERO change in noise, but even a little. Not what I was looking for in a closed system. I figured from the comments here and the fact that the stock tube has a resonator that I would at least get like 5% increase in sound. Nope.

Guess it's on to open intake...

I know it's disappointing AT FIRST. As I said, I encourage you to give it at least a month. The sound of mine has noticeably increased over the last 5 weeks. Also, have someone perform a pull in your car while you are on the side of the road. If you don't like it at a month, pull the airbox out and port it.

[Maple Leaf]

Might be a noob question but if you already have an upgraded inlet tube and filter (stock air box) and you eventually want to go stage 2, does it require you going to a full intake or porting your stock one? I’m not a fan of supercharger whine so I want to weigh my options.

[Morritse]

Might be a noob question but if you already have an upgraded inlet tube and filter (stock air box) and you eventually want to go stage 2, does it require you going to a full intake or porting your stock one? I’m not a fan of supercharger whine so I want to weigh my options.

Nothing requires upgrading anything about the intake.

[MSq5]

Might be a noob question but if you already have an upgraded inlet tube and filter (stock air box) and you eventually want to go stage 2, does it require you going to a full intake or porting your stock one? I’m not a fan of supercharger whine so I want to weigh my options.

No. You can run Stage 2 with a completely stock intake or any degree of modification to the intake. There are cars here running 10 second quarter mile on this platform with the modified stock air box and upgraded hose and filter. I'm pretty sure those cars were deep into the 11s even before cutting holes in the airbox. It flows well to considerably over 400 hp. Gains from modifying the stock air box or other aftermarket intakes are real, but modest.

[AudiS4SD]

I know it's disappointing AT FIRST. As I said, I encourage you to give it at least a month. The sound of mine has noticeably increased over the last 5 weeks. Also, have someone perform a pull in your car while you are on the side of the road. If you don't like it at a month, pull the airbox out and port it.Yea we'll see!

So, what changes in the setup that causes the sound to change? I don't see how a filter getting dirtier from day 1 and the tube not changing would result in an increase in noise.

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[Maple Leaf]

No. You can run Stage 2 with a completely stock intake or any degree of modification to the intake. There are cars here running 10 second quarter mile on this platform with the modified stock air box and upgraded hose and filter. I'm pretty sure those cars were deep into the 11s even before cutting holes in the airbox. It flows well to considerably over 400 hp. Gains from modifying the stock air box or other aftermarket intakes are real, but modest.

Thank you! I’m going to give the AFE filter a shot.

[doughboy17]

Yea we'll see!

So, what changes in the setup that causes the sound to change? I don't see how a filter getting dirtier from day 1 and the tube not changing would result in an increase in noise.

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I have no idea. All I can do is share my experience (about 5 -6 weeks in at this point). If you prefer more whine, the open intakes seem to certainly provide that.

[hilmar2k]

So I went ahead and installed the 034 tube + AFE filter this morning. There is ZERO change in noise, not even a little. Not what I was looking for in a closed system. I figured from the comments here and the fact that the stock tube has a resonator that I would at least get like 5% increase in sound. Nope.

Guess it's on to open intake...

If you decide to go open intake, I'd take the 034 tube and filter off your hands. Just let me know.....

[ihave2seats]

For any of you using the stock box setup - I’ll be selling my afe filter that’s been used for about 2k miles when my APR gets here :)

[Morritse]

Yea we'll see!

So, what changes in the setup that causes the sound to change? I don't see how a filter getting dirtier from day 1 and the tube not changing would result in an increase in noise.

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is your airbox ported?

[AudiS4SD]

is your airbox ported?

No, I did not put holes in it yet. May be a next step.

[Morritse]

No, I did not put holes in it yet. May be a next step.

Definitely need to do this.

[AudiS4SD]

If you decide to go open intake, I'd take the 034 tube and filter off your hands. Just let me know.....Will do...

Definitely need to do this.Ok, was seeing no holes first given the other post where the sound miraculously gets louder over a few weeks.

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[Morritse]

Will do...
Ok, was seeing no holes first given the other post where the sound miraculously gets louder over a few weeks.

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Switching from OEM to AFE filter instantly gave me a lot more SC noise, but I already had a ported box.

[AudiS4SD]

Switching from OEM to AFE filter instantly gave me a lot more SC noise, but I already had a ported box.Yea my AFE filter, though dry setup, did absolutely nothing combined with the 034 tube. Very strange.

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[Grumby21]

Somewhat off topic but is there a filter box setup that makes it easier to replace/clean the filter when needed I find it a bit of a pain to get to the filter. I don't care if I have to get one that has a lot of whine but I want function rather then forum.

[MSq5]

Will do...
Ok, was seeing no holes first given the other post where the sound miraculously gets louder over a few weeks.

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I don't think it gets louder. You learn to recognise the sound after replacing the stock tube. It is a whine or high pitched whistle sound. It is there. I could hear it easily before porting the airbox. It is most noticeable to me at light throttle acceleration. At full throttle intake air suction and exhaust tone will compete with it.

I'm 68 years old and have some high frequency hearing loss from rock concerts and shooting sports and can still hear it easily on partial throttle acceleration.

[AudiS4SD]

I don't think it gets louder. You learn to recognise the sound after replacing the stock tube. It is a whine or high pitched whistle sound. It is there. I could hear it easily before porting the airbox. It is most noticeable to me at light throttle acceleration. At full throttle intake air suction and exhaust tone will compete with it.

I'm 68 years old and have some high frequency hearing loss from rock concerts and shooting sports and can still hear it easily on partial throttle acceleration.I know what it sounds like, lol. I can detect the whine very faintly even stock, but figured by removing the stock resonator it would at least be like 1 db louder. It's not, so we'll see if making holes in the airbox does anything.

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[AudiS4SD]

Well, the earlier setup discussion wasn't quite what I was looking for. Just installed my IE intake last night and love it! Not sure if I'm really getting any of the advertised added HP, but the whine is great -- subtle when cruising, but present when "needed". [:)]

[hilmar2k]

Well, the earlier setup discussion wasn't quite what I was looking for. Just installed my IE intake last night and love it! Not sure if I'm really getting any of the advertised added HP, but the whine is great -- subtle when cruising, but present when "needed". [:)]

Does that mean you'll be parting with your silicon tube and filter? I'm still willing to take it off your hands.

[Jayz691]

I have the ecs intake for my b7 a4, and love it. Got it on sale for like $240, so couldn't beat that. Heat shield totally seperates the engine bay. Even has rubber seal on top that seals against the hood. Screw those $400 intakes.

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[AudiS4SD]

Does that mean you'll be parting with your silicon tube and filter? I'm still willing to take it off your hands.Sorry buddy, I decided to return them back for a full refund.

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[doughboy17]

Well, the earlier setup discussion wasn't quite what I was looking for. Just installed my IE intake last night and love it! Not sure if I'm really getting any of the advertised added HP, but the whine is great -- subtle when cruising, but present when "needed". [:)]

Glad you found what you wanted! Enjoy.

[eswift]

I installed this the other day and it's REALLY snug against those two hoses (circled) i know they sell a fuel hose relocation kit (which imo should come with the inlet because, well it looks ugly). I'm concerned about the hose that really being rubbed against, I know it's not the fuel but i'm sure if it fails it will be a problem.

Anyone? 87206

[Arin@APR]

APR

https://www.goapr.com/products/intake_b8_30t.html

Perfect fitment
MASSIVE filter
Insane flow numbers (770 CFM at 28" H2O)
Carbon Fiber
Stainless Steel Heat Shield
Great price


https://www.goapr.com/includes/img/products/CI100037_001.jpg
https://www.goapr.com/includes/img/products/CI100037_002.jpg
https://www.goapr.com/includes/img/products/CI100037_008.jpg

https://www.goapr.com/includes/img/products/dyno/30tfsi_b8_s4s5/30tfsi_b8_s4_intake_flow_bench.png

https://www.goapr.com/includes/img/products/dyno/30tfsi_b8_s4s5/30tfsi_b8_s4_dsg_s2+_vs_s2+_intake_93_cc.png

[MSq5]

APR

https://www.goapr.com/products/intake_b8_30t.html

Perfect fitment
MASSIVE filter
Insane flow numbers (770 CFM at 28" H2O)
Carbon Fiber
Stainless Steel Heat Shield
Great price


https://www.goapr.com/includes/img/products/CI100037_001.jpg
https://www.goapr.com/includes/img/products/CI100037_002.jpg
https://www.goapr.com/includes/img/products/CI100037_008.jpg

https://www.goapr.com/includes/img/products/dyno/30tfsi_b8_s4s5/30tfsi_b8_s4_intake_flow_bench.png

https://www.goapr.com/includes/img/products/dyno/30tfsi_b8_s4s5/30tfsi_b8_s4_dsg_s2+_vs_s2+_intake_93_cc.png

Arin,

Could you tell us where in the system you are doing the CFM measurement at 28" of water pressure? Is is pre-throttle body or post throttle body? My theory is that increased flow at the throttle body end of the tube may be meaningless if the throttle body, itself, flows less than the CFM volume or air mass coming into it.

Example: If the stock throttle body can only flow 600 CFM (just an example. I don't know actual flow), then increasing the flow to a higher number back upstream may be meaningless. Once the max flow rate of the stock throttle body is attained that is all that is going to get to the supercharger.

Where are you making your measurements? What is the stock throttle body flow rate to the supercharger?

[Arin@APR]

We measured all of the following:

Stock Airbox
- through stock rear pipe
- through APR rear pipe
- through APR Ultracharger Pipe

APR Closed Airbox
- through stock rear pipe
- through APR rear pipe
- through APR Ultracharger Pipe

APR Open Airbox
- through stock rear pipe
- through APR rear pipe
- through APR Ultracharger Pipe

[MSq5]

I interpret that to mean that your measurements are all at the INPUT to the throttle body. Is that correct? if so the numbers do not tell us if there is actual increased flow from the stock throttle body to the supercharger.

What is the max flow rate of the stock throttle body itself at 28" of H2O? What is the stock throttle body max DISCHARGE CFM at 28" of H20, regardless of intake or throttle body tube?

[AudiS4SD]

APR, will this intake yellow like the other ones you make? Lots of them popping up lately...

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[waxxonMTL]

Time will tell lol! ;)

[Arin@APR]

APR, will this intake yellow like the other ones you make?

I can't say I've seen any of the systems we've been making yellowing (Some of the older carbonio systems did), but I wouldn't say they can't because even the factory Audi, Ferrari and other high end brand's carbon yellows with time.

[BryanB8.5]

Does anybody know what the max CFM the supercharger itself can demand? With stock throttle body and with ultra charger?

[Gberg888]

Does the open air APR intake come with the back pipe to the throttle body? Or is that extra?

[Works2shoot]

Does the open air APR intake come with the back pipe to the throttle body? Or is that extra?

When you try to order it, or when you visit the APR website, does it say if it's included? At 350$, I'd say no since their closed system is 750$.

[JJI]

Does the open air APR intake come with the back pipe to the throttle body? Or is that extra?

No it doesnt. I have a AWE tuning backpipe that fits perfect to APRa open intake if your interested


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[Midnight_Rider]

I always liked using the stock intake box. I never liked the open element intakes. They tend to suck during the hot months.

I like ECS silicone pipe, but not at $100 plus intake filter at $80. Plus, I don't think I can justify paying $100 for a silicone intake, even if it's 6 ply.

https://www.audizine.com/forum/showthread.php/782113-my-custom-intake-using-the-stock-airbox-(lots-of-pictures)

After seeing that thread, I finally found some parts to do this. The intake on above thread is now $90, so I had to find another intake to do this, but all in all will cost me about $70, including the intake filter, to make this happen. It's an intake. It's not complicated.

It's a highway robbery what they charge for this car. Strut bars cost $200 on this car. It's a piece of thicker bar that holds struts together. It's not worth $200. It's same with BWM's, Mercedes, and Ducati.

[eswift]

I always liked using the stock intake box. I never liked the open element intakes. They tend to suck during the hot months.

I like ECS silicone pipe, but not at $100 plus intake filter at $80. Plus, I don't think I can justify paying $100 for a silicone intake, even if it's 6 ply.

https://www.audizine.com/forum/showthread.php/782113-my-custom-intake-using-the-stock-airbox-(lots-of-pictures)

After seeing that thread, I finally found some parts to do this. The intake on above thread is now $90, so I had to find another intake to do this, but all in all will cost me about $70, including the intake filter, to make this happen. It's an intake. It's not complicated.

It's a highway robbery what they charge for this car. Strut bars cost $200 on this car. It's a piece of thicker bar that holds struts together. It's not worth $200. It's same with BWM's, Mercedes, and Ducati.

Agree, it's friggin ridiculous what they charge for intakes that aren't CF (also CF is just overdone and silly imo) it's a pipe ffs lol. I already bought the ECS silicone one so I think I would just do the air box mod (looks amazing). I would probably just stick with the stock filter tho unless there's a performance version that isn't oiled (don't like maintenance) just for SC whine tho lol

[Midnight_Rider]

Agree, it's friggin ridiculous what they charge for intakes that aren't CF (also CF is just overdone and silly imo) it's a pipe ffs lol. I already bought the ECS silicone one so I think I would just do the air box mod (looks amazing). I would probably just stick with the stock filter tho unless there's a performance version that isn't oiled (don't like maintenance) just for SC whine tho lol

I found few threads with this guy doing some testing on the stock intake box.

http://www.myaudis4.com/airbox-flow-test/

Really interesting stuff.

[fstr n u]

I'm a bit concerned about data from APR above. What is being forgotten or dismissed in our supercharger setup is the fact our supercharger when in boost will create vacuum. On a stock or mildly modified setup, there will be sufficient vacuum (boost) to override shortcomings of a smaller than stock throttle body. The only way to know would be to have a non APR sourced person dyno a stock S4/S5 6MT or Auto vs a the exact same car with APR setup.

I have been part of several GM/Ford/Dodge builds with forced induction and can tell you the stock throttle body is rarely a limiting factor when boost comes into play. Gotta love clever marketing and gullable buyers.

It is always a buyer beware scenario.

When i modify my S4 it'll be with a stage 2.5 tune, single pulley and will enjoy the snot out of that setup. Far too many headaches going DP when looking at cost/time.

PS, i went with a CTS Intake for my S4 already and i love the sound. CFM gains would be minimal...but the sound is more than worth the money spent...and super easy to install. I wouldn't waste the money on more expensive CAI installs....you won't see any significant gains....period.

[eswift]

I'm a bit concerned about data from APR above. What is being forgotten or dismissed in our supercharger setup is the fact our supercharger when in boost will create vacuum. On a stock or mildly modified setup, there will be sufficient vacuum (boost) to override shortcomings of a smaller than stock throttle body. The only way to know would be to have a non APR sourced person dyno a stock S4/S5 6MT or Auto vs a the exact same car with APR setup.

I have been part of several GM/Ford/Dodge builds with forced induction and can tell you the stock throttle body is rarely a limiting factor when boost comes into play. Gotta love clever marketing and gullable buyers.

It is always a buyer beware scenario.

When i modify my S4 it'll be with a stage 2.5 tune, single pulley and will enjoy the snot out of that setup. Far too many headaches going DP when looking at cost/time.

PS, i went with a CTS Intake for my S4 already and i love the sound. CFM gains would be minimal...but the sound is more than worth the money spent...and super easy to install. I wouldn't waste the money on more expensive CAI installs....you won't see any significant gains....period.

Agreed. I think intakes are a scam for the most part too lol. It's too bad switching pullies is such an endeavor or I would go stage 2 pulley and Chipwerke and switch it back before service so I could keep CPO lmao

[mpk1996]

Is there anyone selling a CF tube alone that will work with a stock box and AFE filter? I like the look of the CF tube, but don't want any/minimal added SC whine. Any ideas, or am i stuck going with the 034 tube?

[JJI]

Is there anyone selling a CF tube alone that will work with a stock box and AFE filter? I like the look of the CF tube, but don't want any/minimal added SC whine. Any ideas, or am i stuck going with the 034 tube?

I dont have a CF for sale but do have AWE backpipe if your interested shoot me a PM


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[mys4.org]

Is there anyone selling a CF tube alone that will work with a stock box and AFE filter? I like the look of the CF tube, but don't want any/minimal added SC whine. Any ideas, or am i stuck going with the 034 tube?This is my setup

https://youtu.be/B2r1zdV6tvc

Got the intake tube here: https://www.ecstuning.com/b-ecs-parts/supercharger-inlet-kit-carbon-fiber/000931ecs02akt/

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[jdwk]

I've used K&N and similar (Halltech) oiled filters for 15 years and never had an issue with oil getting past the filter. I'd usually use the recharge kit once a year, which is way more often than suggested. I guess it was kind of a pain, but never that big of deal. Just spray them down with the cleaner, let it soak for a while, then shove the sink nozzle in the filter and rinse it out, let it dry overnight, oil it up and throw it back on the car.

I'd love to see actual pulls with the dry vs the wet filter, to see if it's worth the extra hassle of the oil. Definitely one of those things where the pros and cons are about equal, which is why aFe sells both. Seems like a total toss up unless you are going for every possible pony in which case, you'd go oiled.

[SVG]

I've used K&N and similar (Halltech) oiled filters for 15 years and never had an issue with oil getting past the filter. I'd usually use the recharge kit once a year, which is way more often than suggested. I guess it was kind of a pain, but never that big of deal. Just spray them down with the cleaner, let it soak for a while, then shove the sink nozzle in the filter and rinse it out, let it dry overnight, oil it up and throw it back on the car.

I'd love to see actual pulls with the dry vs the wet filter, to see if it's worth the extra hassle of the oil. Definitely one of those things where the pros and cons are about equal, which is why aFe sells both. Seems like a total toss up unless you are going for every possible pony in which case, you'd go oiled.

I’ve used an AFE filter element on a truck I have owned for years. I purchased a second element so I always have one ready to go when I need it.

[Gr8nrg]

The stock air box is a true cold air intake system, drawing air from the outside through the front grill. You can increase flow potential by drilling hole(s) on the bottom of the front headlight side of that box. This is away from the engine.

The stock filter flows quite well, but a study posted elsewhere here shows that some aftermarket filters like the dual cone aFe Pro 5R flow better, and that the stock throttle body tube can be improved upon by using reinforced smooth sided tubes, like the silicone one made by 034.

There are guys like one of our moderators here that are running in the high 10 second quarter mile with the stock airbox set up this way. Those are the most highly modified cars. They must be making over 600 horsepower to produce those numbers.

I think every other approach is interesting and may produce different subjective sounds, and have different visual appeal, if that is what you are looking for, but I seriously doubt that they improve on actual performance compared to the simple air box mod, stiff, smooth throttle body tube and a high flow drop in filter in the stock airbox.



This. The rest is posturing.
There are prettier options but this is no nonsense.

[eswift]

I'm subbed to this thread and got the necro-bump notification ffs.

FWIW i went with an IE open air, after roc euro lol. Modded box will do the job but doesn't look as pretty with the hood up

[Ayo_wtf]

I’ve had no complaints about my IE intake. Sounds great, looks good and super easy install. Good bargain for the money too.


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[eswift]

Ie has become my favorite aftermarket brand for this platform.

[Ayo_wtf]

Ie has become my favorite aftermarket brand for this platform.

Definitely their customer service is top notch and the build quality is great especcially for the price. I’m going stage 2+ from them very soon and I couldnt be more excited!


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