Exhaust?

[FrankM16]

does anybody know of a good exhaust for my 2007 rs4. im looking for a throatier sound.

[BHGDigital]

http://www.millteksport.com/

[B6JoeS4]

http://gmgracing.com/audi_exhaust_gmg_wcrs4.shtml

[S4V8]

Tons to choose from. this has been beaten to death on this forum. Most are "noise maker's" as it seems the stock exhaust fairs quit well on it's own.

I want an exhaust as well, but am having a tough time deciding between the AWE and Milltek system. Good Luck!

[RAudi Driver]

I love my milltek because of the perfect looking tips and the valves. Te sound is nice also.

[NY07RS4]

This has been covered but with that said...it depends on what your end goals are and what your personal preference is. If you want performance, leave the OEM manifolds alone they were built quite well and do their job. The downpipes are your enemy so to speak. At a minimum gut the precats or go catless or buy aftermarket DP's with HFC's. If you research DP's you will find various experiences with different manufacturers. Next up is a properly designed cross over or "X" pipe. Research the benefits and what to look for. Pipe diameter and pipe layout are two more important variables. Resonaters - to keep or not to keep. Finally mufflers...you want them to flow well, be light and sound good. There is a great read on this topic, search for JFunkeys write up (I think it was him) it has tons of useful info. Lastly, a tune as you know will help you take advantage of the newly available power you'll have unleashed from helping your exhaust breath easier.

P.S. JHM is close to releasing a new exhaust set up for the RS4. I'd be patient to see what they came up with before making any decisions. Their proven track record and performance mile stones speak for themselves.

[Retsujou]

Tons to choose from. this has been beaten to death on this forum. Most are "noise maker's" as it seems the stock exhaust fairs quit well on it's own.

Actually all of them are performance based. I do not know one single RS4 exhaust that cannot give you marginal gains in HP when properly supported. Even the Tubi Rumore are designed as race mufflers as such they have a flow through design and with the right mods they would flow better than the stock mufflers. As everybody else said, please use the search function this has been discussed to death on here and I am partly to blame for it. I spent nearly 13 months researching exhausts and all I can say is that it is a very personal choice based on what you want to achieve. If, by throaty sound, you mean American muscle like, you will not find those type of exhausts unless you do some work on your own. The GMG is a very good suggestion but it has a very unique sound you might not like.

[boplaw]

I bought a non-resonated, non-valved Milltek from an AZ board member and had the tips/cans ceramic coated. I am happy with it.

I don't think that M3 I went by turning 8k this morning cared for it too much though...

[WinterRunner]

VAST piggies, magnaflow x crossover at end of DP's, center resonator delete w/ straight piping, and milltek tips welded to stock mufflers. My ideal exhaust setup....... Also less than 1K to buy/install while retaining the S button's valving functions.

[[email protected]]

Capristo with programmable valving system

[WinterRunner]

^^ If money was no option I would surely spring for that. I just hate the tips, would need to get some Milltek tips instead. BUT, money is no option!

[jfunkey]

The Stock RS4 system is nice but with no X its going to have its issues. Power wise ANY high rpm car will pick up and run stronger wiht a crossover..

Even tho The RS4's have great flowing Dp's the cats still are going to be an issue. that 02 right there measures heat and once that cat gets too hot the ECU will start to pull back power.. The best way to get around this.. take out the Pre cat.

The guy I sold my RS4 to said he is testing one of the JHM exhaust.. Ill see If I can get some clips from him sould be real exciting

[Retsujou]

Capristo with programmable valving system

Which is a complete waste of money on this engine by the way...

[RS4POWER]

Which is a complete waste of money on this engine by the way...

And you know this how?

[Tweety-s-]

Which is a complete waste of money on this engine by the way...

Quote

[Brian0473]

And you know this how?

<Start sarcasm> From my experience on this forum I've found that Retsujou knows everything. </Sarcasm>

[RS4POWER]

<Start sarcasm> From my experience on this forum I've found that Retsujou knows everything. </Sarcasm>

<Correction> .... he knows everything about items he doesn't own nor sampled.

[Retsujou]

And you know this how?

I know this because the manufacturer themselves admitted that they only created the variable Valve system to A) comply with Sound regulations that are necessary to pass TueV regulations and B) because they wanted to counteract concerns by people that read about "back pressure" issues with N/A engines. I am more than happy to share the lengthy email threads I have had with Capristo in Germany, unfortunately they are in German. If you want I will translate them though. The engine is considered to be too small in terms of Engine Volume for Back-pressure to really be an issue. That is something many of the other manufacturers such as Tubi will happily verify for you, if you bothered to talk to them.

I spent nearly 13 months researching exhaust options for my car, do you not think i went over all these concerns when I did the research?

[Retsujou]

<Correction> .... he knows everything about items he doesn't own nor sampled.

Some more corrections. When I visited my Parents in Germany I actually went and drove the Capristo house RS4. You know the Glut Orange RS4 station Wagon? So do me a favour and do not correct others on what I might know or not know.

[Retsujou]

<Start sarcasm> From my experience on this forum I've found that Retsujou knows everything. </Sarcasm>

Since we are being sarcastic. You are in the wrong forum on the wrong web-site. I am sure there is a Benz forum somewhere for you...

[Brian0473]

Since we are being sarcastic. You are in the wrong forum on the wrong web-site. I am sure there is a Benz forum somewhere for you...

I didn't know the forum was open only to current RS4 owners...I figured it was open to Audi enthusiasts, prospective buyers, owners, and people who just plain like cars and have an internet connection. The fact is I don't think I have ever seen a post from you which doesn't have attitude written all over it. Do us all a favor, if you're so damn smart help us out! Show us the output of the fountain of knowledge you've acquired relentlessly studying the art of the RS4...and try to be nice about it. Or I guess you could continue getting yourself off by being a big D-Bag all the time.

[Zac]

Tubi all the way!

[Retsujou]

I didn't know the forum was open only to current RS4 owners...I figured it was open to Audi enthusiasts, prospective buyers, owners, and people who just plain like cars and have an internet connection. The fact is I don't think I have ever seen a post from you which doesn't have attitude written all over it. Do us all a favor, if you're so damn smart help us out! Show us the output of the fountain of knowledge you've acquired relentlessly studying the art of the RS4...and try to be nice about it. Or I guess you could continue getting yourself off by being a big D-Bag all the time.

I think I have helped enough people while being on this board. My Inbox is a testament to that. If you do not approve of my way of writing than that is unfortunate but there is really nothing I can do about it. There is only so much you can convey in writing and tone of voice or body language are sure not any of them. I am very flattered that you obviously have read all my posts since you are judging them all to be laced with attitude. What kind of attitude are you actually referring to? Maybe we should return to the issue at hand, shall we?

So, please explain to me why a variable valving system is so very important for the V8 in the RS4 when Quattro GMBH themselves only have the valves in place so that they can pass Noise restrictions? That is not a new thing to do for any German Car Manufacturer, Porsche used to have them on the Turbo models for the longest time. I was not attacking Alex, whom I appreciate and he has a business to run, he obviously _wants_ to sell that system and that is his good right. He is a very smart and helpful member of the forum. If you want a variable valve system on you car, go spend the money. There is no indication, none whatsoever, that you will get any performance value out of it.

In conclusion I would like to state that I am a human being and not a utensil used to clean a female's vagina. But then again I am sure you knew that already,

To the OP, I am very sorry that this happened. My apologies.

[dtoys4.2]

All he wanted to find out was exhaust options. I hate when this happens in threads. Whatever. I have the magnaflow catback on mine. Only thing I would change about it is the tips. Very well made system for the money. Only thing I looked for when I was buying was sound. It was between gmg and magnaflow. Bottom line is If u pay $500 or $5000 for a system they all are gonna give u almost the same gain. Only 1 or 2 hp difference and everybody can agree to that. I like the magnaflow and it sounds nice in my opinion. A lot more quiet than I expected.

[RS4POWER]

I know this because the manufacturer themselves admitted that they only created the variable Valve system to A) comply with Sound regulations that are necessary to pass TueV regulations and B) because they wanted to counteract concerns by people that read about "back pressure" issues with N/A engines. I am more than happy to share the lengthy email threads I have had with Capristo in Germany, unfortunately they are in German. If you want I will translate them though. The engine is considered to be too small in terms of Engine Volume for Back-pressure to really be an issue. That is something many of the other manufacturers such as Tubi will happily verify for you, if you bothered to talk to them.

I spent nearly 13 months researching exhaust options for my car, do you not think i went over all these concerns when I did the research?

Being that I own the system and have actually experienced the acoustical effects in every mode I can tell you this is a very well thought out system. Hardware and software need to be installed as instructed by capristo germany so you can absolutely enjoy how the time and craftsmanship that went in to this system.

Before installing the capristo programable valving system I had the hardware working with the "S" button.

If you understand how the "S" button works when not depressed the exhaust valves open very high in the rpms.

When the "S" is depressed the valves are open at idle and once you start accelerating (or revving) they close until 3.5k rpm when they open again. For the stock system which is choked up its not an issue because the difference in sound is minimal. However that is not the story with the capristo. That gap of silence is very annoying and anything but pleasurable. The car would sound great at idle and then would go mum until 3.5k rpm which was a total turn off.

Capristo has manufactured their own ecu with performance and sound in mind. In all three modes back pressure and sound comes on as the driver pleases. When in "open" mode the sound from idle to wot is linear with no cutoffs and the sound is absolutely intoxicating. I am sure you witnessed this in your visit to Capristo and they enlightened you as to why none of their efforts were a waste of money. They have been making exhaust systems for exotics for a long time. I am sure they would want to keep their expenses down if they truly thought anything was a waste of time and money.

Again I understand the tough regulations in Germany but the capristo ecu does so much more than satisfy tuev standards.

I hardly think its a waste of money and everyone should choose to spend their money as they so desire.

[RS4POWER]

All he wanted to find out was exhaust options. I hate when this happens in threads. Whatever. I have the magnaflow catback on mine. Only thing I would change about it is the tips. Very well made system for the money. Only thing I looked for when I was buying was sound. It was between gmg and magnaflow. Bottom line is If u pay $500 or $5000 for a system they all are gonna give u almost the same gain. Only 1 or 2 hp difference and everybody can agree to that. I like the magnaflow and it sounds nice in my opinion. A lot more quiet than I expected.

He asked and he should get facts. When members comment on items they know very little about they should be corrected. That would serve the whole community a lot better.

Exhaust sound is all about preference. I really don't think you can go wrong with any RS4 system and that includes the stocker as well.

[dtoys4.2]

Ur right and most parts for cars are all about personal preference. All the cb systems sound good. Do what I did. Listen to as many rs4s I can find with cbs and watch every youtube vid on rs4 exhaust sounds lol

[duud40]

I`m very happy with my awe not resonated system with no cats. Sure it drones. But hey :D

[RAudi Driver]

^^. I love the truth!

Milltek FTW!

[Brian0473]

I had a magnaflow catback. It was cheap (around $700 shipped) and sounded great. I also had an RS4 with down pipes and full Milltek resonated catback which also sounded great, but better (IMO). Not as loud believe it or not and with a more refined tone.

The bottom line is that on this engine a bunch of hollowed out soup cans taped together would sound good.

[Tekk]

Here's a vid with the GMG racing exhaust...

I really like the GMG unit (have it on my car). Gives it some definitely noticeable growl during normal driving and while on the pedal, people can definitely hear you :) No droning or anything either which is always a nice thing when getting an aftermarket exhaust kit. I actually dont think its as loud as the Miltek or the Magnaflow but it does give a very nice refined but aggressive V8 rumble. If at all possible I'd head to a meet somewhere to try and hear the different ones in person. Videos really only do so much as Im sure you know.

Good luck! And as others have said...gut your precats while your having it installed. Whatever system you get...

[Tweety-s-]

How come almost all of you care about sound better than performace???

Almost all of you just talk about sound, in my opinion if I have to spend a lot of money (as in many cases) in an Exhaust System, first I NEED to be sure to get some HP with it.. then the sound....

You guys don't care about performance??

[duud40]

Try to sell them those headers and they`ll care about performance lol :))

[Tweety-s-]

Try to sell them those headers and they`ll care about performance lol :))

ehehehe ....hopefully soon enough...

[richib86]

I`m very happy with my awe not resonated system with no cats. Sure it drones. But hey :D

really? when i cut the cats out of my miltek downpipes i really had NO drone, a lot of noise but none of it was drone

[duud40]

You`re not doing it right then. :D

[Zac]

How come almost all of you care about sound better than performace???

Almost all of you just talk about sound, in my opinion if I have to spend a lot of money (as in many cases) in an Exhaust System, first I NEED to be sure to get some HP with it.. then the sound....

You guys don't care about performance??

Because its a RS4 and you really wont gain a whole lot of performance from the stock exhaust. But sound is a whole different ball game, these engines sound just amazing imo and I take advantage of that.

[[email protected]]

This is a really good point. Exhausts on normally aspirated motors won't usually net you a ton of bhp or torque gain, unless the factory exhaust is really restrictive. The sound is honestly the biggest deciding factor when picking an exhaust. That is a personal preference and the best way to pick the exhaust you want on your car is to listen to as many exhausts as you can, in person is best, but via youtube is the easiest way. Performance gains on cars like this are generally small, they do exist, but it isn't going to be anything dramatic. I'd rather not gain 5bhp and have an exhaust which sounds the best to my ears versus having something I personally do not like and gain a few bhp, at best.

Cheers,

[Tweety-s-]

Well I gained 18Hp with SuperSprint exhaust system...



and I don't think 18 hp are peanuts, especially for a car that should have 420hp but in the real world it only stays around 390hp...

And by the way... GREAT SOUND, does not overlap the sound of the engine (wich I think is the most important thing) but still pretty amazing.

[S4V8]

Well I gained 18Hp with SuperSprint exhaust system...



and I don't think 18 hp are peanuts, especially for a car that should have 420hp but in the real world it only stays around 390hp...

And by the way... GREAT SOUND, does not overlap the sound of the engine (wich I think is the most important thing) but still pretty amazing.

Where can one purchase a SuperSprint Exhaust system?