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      01-11-2013, 04:47 PM   #11

chugster's Avatar
Drives: 13' AW 328i Sport/Coral Red
Join Date: Nov 2010
Location: MD/VA

Posts: 126
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Originally Posted by LAnderson23 View Post
Probably a really dumb question, but: What exactly does putting a performance exhaust get you? Does it simply make it louder or do you actually get a power increase?
I dunno if it gain much but I do believe that by putting this on makes it less restrictive to some degree. So maybe some power might be gained but not by much unless u do a retune/flash.

The stock exhaust is a full 3in. Or really close to one. So it already flows pretty well.