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      02-07-2013, 09:20 PM   #74
Drives: 135i Coupe
Join Date: Jan 2011
Location: St. Paul, MN

Posts: 62
iTrader: (0)

Garage List
2008 135I  [0.00]
2003 YAMAHA FZ1  [0.00]
I don't quite understand OEM versus 2.75" are we strictly talking about the two necks that come out of the back of the FMIC? If I am planning on doing nothing more than my current Exhaust (Berk Street- no midpipes yet), Downpipes and Cobb - (going up to Stage 1+ from Stage1). Is there a reason I should really want the larger pipes?

Also- for the 5" versus 7" with OEM versus 2.75-- is there significant differences in trimming required?

135i Coupe
CR-V (no turbo,no fun)
brow0814 is offline   United_States
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