S63 AMG, S63 AMG 4Matic, S65 AMG (W222, V222) 2014 -2021

Resonator or Cat Delete on 17 S63 Sedan

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Old Dec 12, 2023 | 01:10 PM
  #26  
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2015 S63 & 2014 ML350
I am in the market for a 16 - 18 s63 coming from a 11 e550 with a res delete/x pipe and a muffler delete/j pipe which is why I am asking. Did the sound change significantly after the tune and do you have a video of the pre tune res delete? Thanks again for the replies!

My current setup
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Old Dec 12, 2023 | 06:36 PM
  #27  
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Originally Posted by The Truth
I am in the market for a 16 - 18 s63 coming from a 11 e550 with a res delete/x pipe and a muffler delete/j pipe which is why I am asking. Did the sound change significantly after the tune and do you have a video of the pre tune res delete? Thanks again for the replies!

My current setup
https://youtube.com/shorts/CSCrac5Dc...h3uGeClodqTcAB
No, I don’t have any videos prior. If you search YouTube for stock exhaust sound for the S63, then it’ll sound identical. The tune and resonator delete is about 30% noticeable compared to stock. The burble/pops is definitely louder for sure! I wish I could somehow get a good sound clip of the tune/exhaust when the car is on the highway. It’s day and night compared to any stock s63.
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Old Dec 12, 2023 | 06:50 PM
  #28  
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Originally Posted by phatisfy
No, I don’t have any videos prior. If you search YouTube for stock exhaust sound for the S63, then it’ll sound identical. The tune and resonator delete is about 30% noticeable compared to stock. The burble/pops is definitely louder for sure! I wish I could somehow get a good sound clip of the tune/exhaust when the car is on the highway. It’s day and night compared to any stock s63.
Makes sense! Sounds like a res delete plus the Renntech EVM should give it a nice sound to start with.
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Old Dec 12, 2023 | 09:19 PM
  #29  
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I have never had any check engine light issues with any of the modifications.
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Old Dec 13, 2023 | 03:39 PM
  #30  
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2015 S63 AMG Sedan

Just posted my video on YouTube (link below). 2015 S63 with resonator delete and MBH downpipes. No revs. Just a cold start. Rev clip to come (once I’m not near my neighbors, hahaha).


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Old Dec 21, 2023 | 03:28 AM
  #31  
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2015 S63 & 2014 ML350
Not to keep an old thread going, but would the consensus be straight piping the resonators instead of the xpipe option for sound specifically?
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Old Dec 21, 2023 | 12:01 PM
  #32  
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S63 amg 2014, s560 2020, 2022 Gls450
i am extending the thread only because of curiosity. 2014 s63, downpipes no cat and no resonator... stage 1 w/ burble. Nice crackles above 2k rpm and if i downshift at 70mph in 5th gear to 4th gear.. maybe 2-3 seconds of BIG crackles... overall it is nice but not ideal.

i may put the resonator back and see how it sounds w/ the burble... I want a more meater and heavier sound. The pops are cool but eh.... it sounds much more heavy with out it.

personally I think downpipes w/ resonator probably sounds the most heavy for m157... the burble is nice but can be too much for an s class

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Old Dec 21, 2023 | 12:04 PM
  #33  
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S63 amg 2014, s560 2020, 2022 Gls450
Video of burble

The pop is a show stopper but I don’t see myself revving a car like that…
Attached Files
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Old Jan 17, 2024 | 04:32 PM
  #34  
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I also read the x pipe gives sound on idle, which original model of s63 2014-2017 are missing so there is less sound on idle neither low RPM, but newer models have sport+ mode, which also comes with xpipe. Not sure how all this lines up.
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Old Dec 15, 2025 | 01:12 PM
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Hey everyone! Looks like I’m responding a few years late, but I wanted to share my experience. I recently had my resonators deleted, and the car sounds a bit louder with a noticeable turbo whistle. However, I’m looking to get a bit more sound and performance.

I'm a bit concerned about the muffler flaps I've read that disconnecting them might trigger a check engine light. Has anyone had experience with this?

Additionally, I’m considering going catless eventually. From what I’ve heard, it might require dropping the engine to install any input or advice on that would be greatly appreciated!
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Old Dec 15, 2025 | 01:22 PM
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Originally Posted by dimey357
Hey everyone! Looks like I’m responding a few years late, but I wanted to share my experience. I recently had my resonators deleted, and the car sounds a bit louder with a noticeable turbo whistle. However, I’m looking to get a bit more sound and performance.

I'm a bit concerned about the muffler flaps I've read that disconnecting them might trigger a check engine light. Has anyone had experience with this?

Additionally, I’m considering going catless eventually. From what I’ve heard, it might require dropping the engine to install any input or advice on that would be greatly appreciated!
I have the exhaust module that you can control to fully open your exhaust flaps FOR SALE?
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Old Dec 15, 2025 | 08:00 PM
  #37  
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2015 s63
oops

Last edited by dimey357; Dec 15, 2025 at 08:02 PM.
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Old Dec 15, 2025 | 08:01 PM
  #38  
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Originally Posted by phatisfy
I have the exhaust module that you can control to fully open your exhaust flaps FOR SALE?
My situation is a bit unusual. The previous owner drilled some holes just before the mufflers, which creates a sort of pre-dump effect. I'm considering having the mufflers fully removed in hopes of changing the overall sound or tone. Also, I should mention that whether my flaps open or close doesn't seem to make any difference.
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Old Dec 16, 2025 | 08:12 AM
  #39  
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Originally Posted by nhurley81
Just posted my video on YouTube (link below). 2015 S63 with resonator delete and MBH downpipes. No revs. Just a cold start. Rev clip to come (once I’m not near my neighbors, hahaha).

https://www.youtube.com/shorts/ydQXn7Ed6I4
Thats my car! LOL😁
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Old Dec 17, 2025 | 02:10 AM
  #40  
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Originally Posted by phatisfy
I have the exhaust module that you can control to fully open your exhaust flaps FOR SALE?
If i may ask. Whats the difference between sport mode open flap and the module open flap?
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Old Dec 17, 2025 | 04:04 AM
  #41  
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Originally Posted by dimey357
If i may ask. Whats the difference between sport mode open flap and the module open flap?
Even in “S” mode l, the exhaust flap isn’t really fully opened. Unless you’re really at high speeds. With the exhaust module. It’ll let you control your exhaust flaps fully open/closed in any mode. Only reason why I’m selling the module is because I recently installed a full titanium exhaust system and it came with its own exhaust modules.
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Old Dec 17, 2025 | 12:56 PM
  #42  
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Originally Posted by phatisfy
Even in “S” mode l, the exhaust flap isn’t really fully opened. Unless you’re really at high speeds. With the exhaust module. It’ll let you control your exhaust flaps fully open/closed in any mode. Only reason why I’m selling the module is because I recently installed a full titanium exhaust system and it came with its own exhaust modules.
ah i figured this was the difference. I just dont know if it will make a difference for me in my case as there are fist size holes right before the muffler. No difference between modes. send me a message im curious about it and the price?
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Old Dec 18, 2025 | 10:58 AM
  #43  
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Originally Posted by phatisfy
Even in “S” mode l, the exhaust flap isn’t really fully opened. Unless you’re really at high speeds. With the exhaust module. It’ll let you control your exhaust flaps fully open/closed in any mode. Only reason why I’m selling the module is because I recently installed a full titanium exhaust system and it came with its own exhaust modules.
What does a Ti exhaust weigh VS stock? How is the tone? Added power? How many dollars? I'd love to see pics of it once you've had a chance to heat it up enough to give it that color Ti gets with heat.
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Old Dec 18, 2025 | 11:49 AM
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Originally Posted by JohnLane
What does a Ti exhaust weigh VS stock? How is the tone? Added power? How many dollars? I'd love to see pics of it once you've had a chance to heat it up enough to give it that color Ti gets with heat.


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Old Dec 19, 2025 | 05:59 PM
  #45  
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This one must well and truly YELL with mufflers bypassed.

Dead sexy exhaust.
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Old Dec 20, 2025 | 09:15 PM
  #46  
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Originally Posted by dimey357
Hey everyone! Looks like I’m responding a few years late, but I wanted to share my experience. I recently had my resonators deleted, and the car sounds a bit louder with a noticeable turbo whistle. However, I’m looking to get a bit more sound and performance.

I'm a bit concerned about the muffler flaps I've read that disconnecting them might trigger a check engine light. Has anyone had experience with this?

Additionally, I’m considering going catless eventually. From what I’ve heard, it might require dropping the engine to install any input or advice on that would be greatly appreciated!
i have done a resonator delete and a muffler delete, car sounds amazing and defo alot louder but its beautiful. In order to bypass the flaps on the muffler i used these valve delete connectors : https://modeautoconcepts.com/en-gb/p...39376984801398

make sure you buy the 3 Position (1 Plug) MK7 R / S3 / S6 / S7 / SQ5 / C-Class , you will need 2 of them.

just plug it into the connector you take out of your mufflers and you are good to go no coding required, no CEL or limp mode.
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Old Dec 21, 2025 | 01:30 AM
  #47  
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2015 s63
Originally Posted by barryrobinson19
This is a 2016 S63 4matic sedan. Many mods, however, the exhaust consists of Redstar cat less down pipes, Renntech sport mufflers with electronic valves. I have done all work myself. I feel the car is not too loud and not to quiet. Runs very strong.













https://www.youtube.com/shorts/o4ABRJ2d0L8

I heard you need to drop the motor to isntall downpipes? or were you able to swap them from underneath ?
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Old Dec 21, 2025 | 01:31 AM
  #48  
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Originally Posted by kdon
i have done a resonator delete and a muffler delete, car sounds amazing and defo alot louder but its beautiful. In order to bypass the flaps on the muffler i used these valve delete connectors : https://modeautoconcepts.com/en-gb/p...39376984801398

make sure you buy the 3 Position (1 Plug) MK7 R / S3 / S6 / S7 / SQ5 / C-Class , you will need 2 of them.

just plug it into the connector you take out of your mufflers and you are good to go no coding required, no CEL or limp mode.
you are a Lifesaver! i am thinking it will get a bit louder even tho I have some decent holes before the muffler if i just get them removed fully.
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Old Jan 3, 2026 | 07:52 PM
  #49  
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no worries this is on a Mercedes s63l 2015 btw with the m157 engine (5.5l v8 bi turbo) not sure if with the facelift m177 (4l v8 bi turbo) i think? works with those valve plug deletes in case of new or different technology system.

i could not find any information online on how to bypass those valve connectors, yolo'd and tried those valve delete connectors and it worked wonders no problems at all, car sounds like a lion now haha.

glad i could help, and for future if anybody needs its there now
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Old Jan 22, 2026 | 09:22 PM
  #50  
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w222 s63 5.5l
i’d be interested to purchase your exhaust control module how much

Originally Posted by phatisfy
Even in “S” mode l, the exhaust flap isn’t really fully opened. Unless you’re really at high speeds. With the exhaust module. It’ll let you control your exhaust flaps fully open/closed in any mode. Only reason why I’m selling the module is because I recently installed a full titanium exhaust system and it came with its own exhaust modules.
contact me at (262) 281-0522
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