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brow0814 · 02-07-2013, 08:20 PM

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?

Thanks!
Scott

02-07-2013, 08:20 PM	#74
brow0814 Private 0 Rep 62 Posts Drives: 135i Coupe Join Date: Jan 2011 Location: St. Paul, MN 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? Thanks! Scott __________________ 135i Coupe 996TT CR-V (no turbo,no fun)
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