Best route to eliminate drone and rasp on catless/res delete

[SGR]

Here’s the thread regarding what I said above - https://www.audizine.com/forum/showt...bration-Thread


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[Morritse]

I can offer a suggestion on this as well — Myself and a hand few of others using the 11385 and various semi-custom setups installed these to help with the exhaust vibration. Really cuts it down quite nicely:

https://www.moparpartsgiant.com/part...2103612aa.html

You can clamp or weld them onto a couple of locations on the downpipes.


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You talking about that vibration at 2k? You have that as well?

[SGR]

You talking about that vibration at 2k? You have that as well?

Yes, I did. I have the Mopar dampeners installed though, which cut it out significantly.


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[Morritse]

Yes, I did. I have the Mopar dampeners installed though, which cut it out significantly.


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Hey thanks man. I didn't realize this was a common issue. Just ordered the parts.

[SGR]

Hey thanks man. I didn't realize this was a common issue. Just ordered the parts.

No prob!


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[Audiraz]

You're correct about my setup. I would bet that installing the magnaflow part would fix your issues. It's not really a resonator, so it doesn't discriminate against specific frequencies too much.....

I am going to give this a try, unless someone can offer a different solution. This is what it sounds like. It is just embarrassing to drive...

https://youtu.be/RrM3NPSHgF0



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[Morritse]

I am going to give this a try, unless someone can offer a different solution. This is what it sounds like. It is just embarrassing to drive...

https://youtu.be/RrM3NPSHgF0



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Yea that's quite bad. Definitely give the magnaflow part a try. If that's not enough, then replacing the mid pipe with the resonated stock one certainly would be. As that's what the guy earlier in the thread was running.

[$nooze]

Yes, I did. I have the Mopar dampeners installed though, which cut it out significantly.


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Would you happen to have photos of your locations that removed the vibrations?

Hey thanks man. I didn't realize this was a common issue. Just ordered the parts.

If possible and after you have time to install can you post location photos of your system to further describe where the part is located to eliminate the issues.
Thanks

I am going to give this a try, unless someone can offer a different solution. This is what it sounds like. It is just embarrassing to drive...

https://youtu.be/RrM3NPSHgF0



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Wow that's pretty bad. If you decide to follow suit can you also post photos of where you selected to install the new parts and if it achieved the goal

I'm going to see if I have time to get a clip of my exhaust and share as well.

Also will try to post photos of my exhaust layout so we can pinpoint the correct points to insert the resonators or the item from mopar

[SGR]

Would you happen to have photos of your locations that removed the vibrations?


If possible and after you have time to install can you post location photos of your system to further describe where the part is located to eliminate the issues.
Thanks

Wow that's pretty bad. If you decide to follow suit can you also post photos of where you selected to install the new parts and if it achieved the goal

I'm going to see if I have time to get a clip of my exhaust and share as well.

Also will try to post photos of my exhaust layout so we can pinpoint the correct points to insert the resonators or the item from mopar

Here are a few screen shots from the other thread. I did not take pics of mine, but mine are placed more up front by the cross member by the trans that you see in the one pic. I tried a more posterior location first (clamped up, closer to the 11385), then tried a more forward location after, which yielded even better results. Then I had them welded up. It’s probably worth experimenting for yourself as well if your setup is a little different.

IMG_2806.JPG

IMG_2804.jpg

IMG_2805.jpg


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[$nooze]

Thanks sgr, will see about playing with mine as well and post what I find after

[Morritse]

Thanks SG, looking through that thread I wasn't quite sure where to put them either.

[SGR]

No prob guys, happy to help. Good luck


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[jazzyjay18]

I can offer a suggestion on this as well — Myself and a hand few of others using the 11385 and various semi-custom setups installed these to help with the exhaust vibration. Really cuts it down quite nicely:

https://www.moparpartsgiant.com/part...2103612aa.html

You can clamp or weld them onto a couple of locations on the downpipes.


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Does this take away the 2k - 3k tin can sound or drone? I have all factory with Becker cat-less pipes, what's my next step?

[SGR]

Does this take away the 2k - 3k tin can sound or drone? I have all factory with Becker cat-less pipes, what's my next step?

Totally missed this reply. The resonated x-pipe in place of the baby resonators is what will smooth out the exhaust tone with test pipes (/cat delete), cut the rasp, and eliminate the drone. The exhaust dampeners I spoke of in my last reply are to help cut out vibration you feel in your seat and cabin with the setup we’ve been talking about. It helps cut vibration with other aftermarket/custom exhaust setups as well.

To directly answer your question - yeah, try the magnaflow 11385 in place of the baby resonators. I run it with the Becker test pipes. I posted links to my video of it a little earlier in the thread.

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[Audiraz]

If you have ever thought about “J Pipes”. DON’T!

Talking with my exhaust guy, he wanted to try some J Pipes to get rid of the rasp. Since it was easier done and undone than cutting away at the exhaust, I said sure.

I did not even bother with a sound clip cause it basically sounds like my previous clip, but with a bit of echo. Did not solve the problem even a little. Just DON’T do it!




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[miztahsparklez]

I am going to give this a try, unless someone can offer a different solution. This is what it sounds like. It is just embarrassing to drive...

https://youtu.be/RrM3NPSHgF0



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That's the noise I have... The dampers... They do nothing!

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[miztahsparklez]

If you have ever thought about “J Pipes”. DON’T!

Talking with my exhaust guy, he wanted to try some J Pipes to get rid of the rasp. Since it was easier done and undone than cutting away at the exhaust, I said sure.

I did not even bother with a sound clip cause it basically sounds like my previous clip, but with a bit of echo. Did not solve the problem even a little. Just DON’T do it!




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I've done it.. sounds okay, but you really need to dial it in. But the rasp doesn't go away.

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[Jester2893]

If you have ever thought about “J Pipes”. DON’T!

Talking with my exhaust guy, he wanted to try some J Pipes to get rid of the rasp. Since it was easier done and undone than cutting away at the exhaust, I said sure.

I did not even bother with a sound clip cause it basically sounds like my previous clip, but with a bit of echo. Did not solve the problem even a little. Just DON’T do it!




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To be honest I don’t think that is the best placement to mitigate the rasp from testpipes. I would have put them up in the downpipe section. Additionally, there is a very complex volume calculation to get the j pipes to work with the specific frequency, so I would have made the lengths adjustable to really fine tune them.

All just my opinion as this is my plan once I go with test pipes.


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[Audiraz]

To be honest I don’t think that is the best placement to mitigate the rasp from testpipes. I would have put them up in the downpipe section. Additionally, there is a very complex volume calculation to get the j pipes to work with the specific frequency, so I would have made the lengths adjustable to really fine tune them.

All just my opinion as this is my plan once I go with test pipes.


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My exhaust guy felt like the majority of the rasp was from an echo in the tailpipe mufflers. So he tried it. He did not know the science of it like you seem to, he said he had just done an G35 and it worked for him. So we tried it.

However, just finished cutting out the old X pipe and down pipe resonators and replaced it with a magnaflow 11385. The bad rasp around 2,000 RPMs is gone now! Now I can at least press down on the peddle out of a stop, without sounding like there is a civic stuck in my exhaust!

I would say the sound is about 85% of where I want it. There is still a slight hint of Rasp when going heavy on the gas, like it is a La Croix flavor... but at least it is drivable now.

JHM Test pipe > Magnaflow 11385 > stock mufflers with J pipes attached

I will post a sound clip as soon as I can.




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[MagnaFlow]

Glad you were able to find something that worked out! That will probably be the least amount of rasp you can get without losing the downpipes.

[Morritse]

Glad you were able to find something that worked out! That will probably be the least amount of rasp you can get without losing the downpipes.

Hey! Your part works like a charm! Did not expect it to solve all the problems. It has been consistently shown to get rid of drone and rasp on our cars.


Here's the final result BTW guys.

https://youtu.be/ExubD7CckSE

[creativecody]

I've been a longtime member here and up until recently I was APR Stage 2 with AWE Touring on stock downpipes. I bit the bullet and went Ultracharger and Dual Pulley and due to all the feedback I added test pipes and moved hi flow cats further down the line. I picked up my car and LOUD can not even describe the sound levels once I went over 2k rpm. It wasn't even just "loud"....it was a horrible sound. I was SUPER disappointed and wasn't sure what to do. I was even thinking of going back to Stage 2 and putting my cats back in. It was suggested to me that it would be fixed by adding the Millkek Resonated eshaust. They said 100% it would cure the rasp and general EAR SHATTERING sound levels. I was still super skeptical but I just picked up my car and all I can say is IT WORKED. Many people don't bother with the Milltek Resonated as it's known to be on the quieter side but if you remove cats or add hi flow cats I think it pairs VERY well. I can now drive my car like normal around town without the fear of waking everyone up in a 5 mile radius. It's mellow when needed and in the short time I had to rev it out a bit it sounds great. It's deeper tone than the AWE but sounds/feels great as the rpm's climb. I'll try to get some video soon and post here.

[Rodizzle]

I've been a longtime member here and up until recently I was APR Stage 2 with AWE Touring on stock downpipes. I bit the bullet and went Ultracharger and Dual Pulley and due to all the feedback I added test pipes and moved hi flow cats further down the line. I picked up my car and LOUD can not even describe the sound levels once I went over 2k rpm. It wasn't even just "loud"....it was a horrible sound. I was SUPER disappointed and wasn't sure what to do. I was even thinking of going back to Stage 2 and putting my cats back in. It was suggested to me that it would be fixed by adding the Millkek Resonated eshaust. They said 100% it would cure the rasp and general EAR SHATTERING sound levels. I was still super skeptical but I just picked up my car and all I can say is IT WORKED. Many people don't bother with the Milltek Resonated as it's known to be on the quieter side but if you remove cats or add hi flow cats I think it pairs VERY well. I can now drive my car like normal around town without the fear of waking everyone up in a 5 mile radius. It's mellow when needed and in the short time I had to rev it out a bit it sounds great. It's deeper tone than the AWE but sounds/feels great as the rpm's climb. I'll try to get some video soon and post here.

I was in the same situation as u a month ago , the magnaflow xpipe SOLVE my loudness and Making the AWE touring quieter then before by its self


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[Boston_S4]

Currently running with an ECS x-pipe. While is sounds good I am still trying to figure out how to make it sound deeper and give it more of a growl. Any suggestions??

IMG_0372.jpg

[daytonas4]

I've been a longtime member here and up until recently I was APR Stage 2 with AWE Touring on stock downpipes. I bit the bullet and went Ultracharger and Dual Pulley and due to all the feedback I added test pipes and moved hi flow cats further down the line. I picked up my car and LOUD can not even describe the sound levels once I went over 2k rpm. It wasn't even just "loud"....it was a horrible sound. I was SUPER disappointed and wasn't sure what to do. I was even thinking of going back to Stage 2 and putting my cats back in. It was suggested to me that it would be fixed by adding the Millkek Resonated eshaust. They said 100% it would cure the rasp and general EAR SHATTERING sound levels. I was still super skeptical but I just picked up my car and all I can say is IT WORKED. Many people don't bother with the Milltek Resonated as it's known to be on the quieter side but if you remove cats or add hi flow cats I think it pairs VERY well. I can now drive my car like normal around town without the fear of waking everyone up in a 5 mile radius. It's mellow when needed and in the short time I had to rev it out a bit it sounds great. It's deeper tone than the AWE but sounds/feels great as the rpm's climb. I'll try to get some video soon and post here.

im about to pull the trigger on this as well , but i was scared that i would not get the result i was after til hearing this ... thanks for sharing !! is there any weird vibrations with the milltek around 2k ?, or vibrations , im getting them now with the magnaflow resonator up front , with the jhm test pipes and my corsa cat back.

[Morritse]

im about to pull the trigger on this as well , but i was scared that i would not get the result i was after til hearing this ... thanks for sharing !! is there any weird vibrations with the milltek around 2k ?, or vibrations , im getting them now with the magnaflow resonator up front , with the jhm test pipes and my corsa cat back.

https://www.audizine.com/forum/showt...bration-Thread

[Fresh.S4]

Currently running with an ECS x-pipe. While is sounds good I am still trying to figure out how to make it sound deeper and give it more of a growl. Any suggestions??

IMG_0372.jpg

my car came with the ecs pipe. I cut out the baby resonators; while it idles nice and clean and it sounds great shifting around town, from 3-4k rpms @wot it sounds like shit (all metal and tingy). once you clear that 4k rpms it sounds great again. a very refined throaty. i still have the stock cats/mufflers.

[creativecody]

im about to pull the trigger on this as well , but i was scared that i would not get the result i was after til hearing this ... thanks for sharing !! is there any weird vibrations with the milltek around 2k ?, or vibrations , im getting them now with the magnaflow resonator up front , with the jhm test pipes and my corsa cat back.

No vibrations whatsoever. I'm super happy with it. It's actually much quieter overall than it was with my AWE Touring WITH cats in place. I honestly don't mind that it's quieter overall. At WOT it sounds great and "sporty". I have all the power and none of the dreaded rasp that has been the issue with many people.

[daytonas4]

No vibrations whatsoever. I'm super happy with it. It's actually much quieter overall than it was with my AWE Touring WITH cats in place. I honestly don't mind that it's quieter overall. At WOT it sounds great and "sporty". I have all the power and none of the dreaded rasp that has been the issue with many people.

thats great just ordered mine today ..

[Fresh.S4]

How are y'all gutting the stock cats? Exhaust shop said they might have to cut it open depending on what materials the inside is made of.

I'm getting my new exhaust done and seriously contemplating while the pipes are out.....

[Morritse]

How are y'all gutting the stock cats? Exhaust shop said they might have to cut it open depending on what materials the inside is made of.

I'm getting my new exhaust done and seriously contemplating while the pipes are out.....

I bought a set of used cats on here (they're cheap) gutted them, swapped them for my fucked cats, gutted those, then sold them.

[Corydms7]

The magnaflow helps, but around 70-80 the drone sucks.

https://youtu.be/Rm_SUBPx4l4

Check out my setup, revs and such in the video. Becker test pipes, followed by magnaflow 11385 resonated x-pipe in place of baby resonators. The magnaflow is a hundred bucks. Stock center resonator and stock mufflers. Zero drone.


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