BMW 3-Series (E90 E92) Forum - View Single Post - BMW Performance Exhaust or Dinan Free Flow Exhaust?

tphss · 10-05-2012, 06:49 PM

How restrictive really is the stock exhaust? Maybe it's better just to modify the stock one.

10-05-2012, 06:49 PM	#14
tphss das Eichhörnchen Drives: 13' M3 ESS, 11' 335i, 09' 335i Join Date: Oct 2012 Location: Miami / Atlanta Posts: 198 iTrader: (0)	How restrictive really is the stock exhaust? Maybe it's better just to modify the stock one.
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