GL63 AMG and GLS63 (X166, X167) 2014 - present (Two generations)

2021+ GLS 63 AMG Stock Exhaust Not Loud Enough vs Resonator Delete?

Old Feb 7, 2026 | 11:20 PM
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Gucchi's Avatar
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Question 2021+ GLS 63 AMG Stock Exhaust Not Loud Enough vs Resonator Delete?

Did anyone purchase a 2021+ GLS 63 AMG and find the stock exhaust not loud enough? I am worried because I heard the 2021+ models pump sounds through the speakers. (Excluding 2024+ models).

I am also worried because I for the past few years have been collecting and noticing sounds of specific cars, this one, and yes although you can hear it from outside as a regular pedestrian, it isn't necessarily going to rumble between skyscrapers nor inside bridges and under tunnels. I mainly listen for it and it sounds like it's intentionally designed for the DRIVER + anyone maybe a FEET away from car.

Is there enough or not enough pops, bangs, crackles. (I need those like every single second, is there a way to produce more?) (How do I create more pops, bangs and crackles? Is there ways to get more than factory without intrusive mods or tunes?). Or does the car need a exhaust mod. I can't do or won't do a muffler delete. Anyone have videos of a 2021+ GLS 63 with only a Resonator Delete?

I have sat in one before at the dealer and they started it up and I know it sounds absolutely crazy it was so freaking loud the whole showroom started looking. I called it 'The Dragon' in my head. The startup sound may be too loud, even, but it's only a startup sound, and it was inside an enclosed showroom.

And then, driving off, but when the car started to idle and low rpm I noticed it sounded just like a regular car but nicer. I drove it off in Sport + mode and it did have a sound and you can definitely hear 'whoosh' from turbos. Not too sure on crackles only drove it 5 mins around the block.

POV Video Stock:


What I Need Car To Sound Like: (Can anyone say if this is what their exhaust stock sounds like or no?) (If not what do I need to do to make it sound like this)

Reply
Old Apr 6, 2026 | 10:39 PM
  #2  
KS_ASeitz's Avatar
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GL450
I’m 100% with you! Coming from a Escalade V and that thing screamed and burbled and woke up the dead. Have you found any solutions? The stock exhaust in sport mode doesn’t sound that much louder than quiet mode.

Originally Posted by Gucchi
Did anyone purchase a 2021+ GLS 63 AMG and find the stock exhaust not loud enough? I am worried because I heard the 2021+ models pump sounds through the speakers. (Excluding 2024+ models).

I am also worried because I for the past few years have been collecting and noticing sounds of specific cars, this one, and yes although you can hear it from outside as a regular pedestrian, it isn't necessarily going to rumble between skyscrapers nor inside bridges and under tunnels. I mainly listen for it and it sounds like it's intentionally designed for the DRIVER + anyone maybe a FEET away from car.

Is there enough or not enough pops, bangs, crackles. (I need those like every single second, is there a way to produce more?) (How do I create more pops, bangs and crackles? Is there ways to get more than factory without intrusive mods or tunes?). Or does the car need a exhaust mod. I can't do or won't do a muffler delete. Anyone have videos of a 2021+ GLS 63 with only a Resonator Delete?

I have sat in one before at the dealer and they started it up and I know it sounds absolutely crazy it was so freaking loud the whole showroom started looking. I called it 'The Dragon' in my head. The startup sound may be too loud, even, but it's only a startup sound, and it was inside an enclosed showroom.

And then, driving off, but when the car started to idle and low rpm I noticed it sounded just like a regular car but nicer. I drove it off in Sport + mode and it did have a sound and you can definitely hear 'whoosh' from turbos. Not too sure on crackles only drove it 5 mins around the block.

POV Video Stock:

https://www.youtube.com/watch?v=Pq3-7SPGF1k&t=800s

What I Need Car To Sound Like: (Can anyone say if this is what their exhaust stock sounds like or no?) (If not what do I need to do to make it sound like this)

https://www.youtube.com/shorts/TvReeTng71s
Reply

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