help with exhaust
Thread Starter
Newbie
Joined: May 2019
Posts: 3
Likes: 0
2014 C300 Sport
help with exhaust
so i have just a resonator delete and it sounds good while driving. but when i first start my car (cold and warm starts) it sounds awful and raspy, but after a few mintues it sounds normal again
2014 c300 sport. just looking for anyone who has had this issue or a way to fix it
no xpipe btw justt 2 pipes
2014 c300 sport. just looking for anyone who has had this issue or a way to fix it
no xpipe btw justt 2 pipes
Junior Member
Joined: Sep 2018
Posts: 59
Likes: 6
From: Farmington, UT
2015 GL450
No fix. I have the same thing after replacing the resonator and both secondary cats with a x-pipe. It's simply the higher RPM's of a stationary vehicle. Once the RPMs drop, as you say, it goes away. And just so you know, if it is making that sound, it's more times than not a cold start. All depends on how warm the engine is and how long it takes to drop to idle range.
