Performance exhaust
Thread Starter
Member
Joined: Nov 2002
Posts: 103
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From: Aliso Viejo, CA
G63,GT
Performance exhaust
Does anybody know for certain the difference between the GT with the performance exhaust and without it is? I guess my question is this: if you do NOT have it, is the exhaust default quieter than a vehicle equipped with one, or louder? I was at the dealer today and he started up 2 cars. One with and one without. Both were started in comfort mode. The one without the exhaust option was 100% without a doubt in my mind LOUDER. that leads me to belive that having a car with the exhaust option simply means that the car is default with the valves closed and the button just opens them; where as the car without the exhaust option is just missing the silencing valves, and therefore is always in "loud" mode.... thoughts? I am looking at a gt that doesnt have the exhaust option... and its the only thing holding me back. I want it to be loud. 
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Joined: Feb 2009
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From: DMV
AMG GTBS, AMG GTR Pro, AMG GT, C63 AMG, Porsche Panamera 4S, RX-7 FC Turbo II
I've driven both. The AMG Performance Exhaust cars are definitely louder when driving. The regular exhaust cars start loud and then quickly rev down to a quieter mode. You'll need the option or an aftermarket system if you need the big sound.
Thread Starter
Member
Joined: Nov 2002
Posts: 103
Likes: 14
From: Aliso Viejo, CA
G63,GT
Thanks. How about the suspension? Is the optional 3-stage suspension more "comfortable" or does the 3-stage option simply make for 2x additional (higher) stiffness settings? It blows my mind why dealers wouldnt order these cars without the upgraded exhaust regardless.
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Joined: Oct 2007
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From: A Beach in the Med
G63 & 991.2 GT3 & AMG GT
Comfort setting is AMG's attempt at a more relaxed ride.
Not like BMW's hard-harder-hardest adaptive settings
See this vid on passive and make your own mind up:
Not like BMW's hard-harder-hardest adaptive settings
See this vid on passive and make your own mind up:
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Joined: Aug 2008
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Porsche guy who drives SL63 w/ perf pkg AND perf suspension
first, when you start a car cold it revs high to warm up, then after a while, maybe 20+ seconds it settles down to idle
second, the perf exh is rear mufflers with a bypass valve that opens to bypass part of the chamber which makes it louder when you push a button
second, the perf exh is rear mufflers with a bypass valve that opens to bypass part of the chamber which makes it louder when you push a button
Last edited by okbarnett; Jan 23, 2017 at 09:27 AM.
