M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

ML550 Exhaust Want LOUDER NOISE

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Old Apr 5, 2012 | 09:44 PM
  #1  
2008ml550_0104's Avatar
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From: Barrington Hills IL
08' ML550, ML 63, E55, and 2019 S63, 19’ Porsche 991 911 Speedster
Smile ML550 Exhaust Want LOUDER NOISE

So I am wondering, I love the sound of my ML550, 2008, and it just doesn't seem to have any sound outside of the traditional V8 roar when under acceleration, or when properly downshifting with flappy paddles, so... Can I delete the resonators, do anything to the stock exhaust to make it sound better without sacrificing performance, and/or gas milage, not that I care about that but just curious if this will affect it? Also, I've heard of people doing Res Deletes ?? (explanation please)... and running flowmaster exhausts... What have any of you done to the 08' model year without spending to much money with stock exhaust?

Thanks
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Old Apr 8, 2012 | 05:10 PM
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AudiA4Turbo22's Avatar
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'03 A4 2.0 Stroker, '14 E63 S AMG, '10 E550, '10 S550, '03 C240
I had the two center resonators replaced with Stainless Steel pipes. We don't have secondary cats so nothing we can do there to gain some performance or noise.

I deleted the resonators and it cost me ~$180 and 2 hours time. It can be done for much cheaper, but I went to the only shop I trust.

It sounds a bit louder during normal driving(not that noticeable when not on the gas), but any time you open up the taps it's much deeper and louder. Honestly though, if I were to sell my ML550 today to someone who has a stock one they wouldn't notice it enough to even have it looked at. It sounds exactly how it should have from the factory, a touch louder but still no drone.

Another option would be to buy some ML63 mufflers or the whole exhaust used.
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Old Feb 21, 2021 | 02:10 PM
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2008ml550_0104's Avatar
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From: Barrington Hills IL
08' ML550, ML 63, E55, and 2019 S63, 19’ Porsche 991 911 Speedster
Originally Posted by AudiA4Turbo22
I had the two center resonators replaced with Stainless Steel pipes. We don't have secondary cats so nothing we can do there to gain some performance or noise.

I deleted the resonators and it cost me ~$180 and 2 hours time. It can be done for much cheaper, but I went to the only shop I trust.

It sounds a bit louder during normal driving(not that noticeable when not on the gas), but any time you open up the taps it's much deeper and louder. Honestly though, if I were to sell my ML550 today to someone who has a stock one they wouldn't notice it enough to even have it looked at. It sounds exactly how it should have from the factory, a touch louder but still no drone.

Another option would be to buy some ML63 mufflers or the whole exhaust used.
that’s great, I’ll bet it sounds good. How’s the noise level inside the cabin? The trouble I am finding is either locating a sample sound if replacing both resonators, with AMG ones. Or if I can find an aftermarket set, or used pair. The other issue is whether or not the mixture will be affected due to the increased amount of pressure and flow now once removed? Did you do a tune?

any help in locating the replacement ones and what I will do is delete the mufflers in the back and from what I hear, that is the way to go. Keep or replace the resonator with an AMG one or aftermarket compatible one.

Thoughts?

anyone else can help that would be appreciated.

Steve
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Old Feb 21, 2021 | 10:36 PM
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2018 GLC300 4Matic; 2008 ML550 4Matic; 2004 C320
I think you should start a couple more theads about this subject, ...... you may get a better response.
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Old Feb 21, 2021 | 11:06 PM
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08' ML550, ML 63, E55, and 2019 S63, 19’ Porsche 991 911 Speedster
Originally Posted by S70Houston
I think you should start a couple more theads about this subject, ...... you may get a better response.

OK
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