Thread: M Performance Exhaust - I can't hear you
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      10-19-2019, 09:56 PM   #36
insane11
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Drives: 435i GC
Join Date: Nov 2017
Location: 87111

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Quote:
Originally Posted by DL335D View Post
A little low RPM drone came when I removed the exhaust flap clip. Didn't get any worse from deleting the resonator.

I'm thinking about putting the clip back in.
Why not install a j pipe to help with the drone.
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