View Single Post
      10-17-2020, 09:25 PM   #3
Second Lieutenant
Demxsr's Avatar

Drives: 16 M4
Join Date: Jun 2015
Location: Cali / Hawaii

iTrader: (1)

your exhaust is vibrating against each other or against the car. This happens to me when I run the car hard and the exhaust gets really hot. The resonators on my AWE do the exact same thing once they expand from the excess heat. Only happens at idle once I come to a stop. For me, It goes away after about 30 seconds of chill driving once the system contracts a little bit.

When your exhaust was put back into position after your DP Your mid pipes are probably a little out of perfect positioning. If you go under the car sometimes you can see a little rub make on the car or exhaust to show where it is. I also had rubbing around the diff and rear linkages that I corrected, after I saw some rub marks back there.