Thread: DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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      08-25-2017, 12:38 PM   #717
CanadianTSi
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Drives: 2014 535 xDrive Diesel
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Quote:
Originally Posted by AdamAllenE93 View Post

TL;DR
Had engine problems right after doing this mod, mechanic says it's a coincidence.
Your mechanic is right.
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