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      11-18-2010, 08:38 PM   #54
shiv@vishnu
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Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

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Quote:
Originally Posted by gbreeE90 View Post
So do you prefer 2.5"? Or does diameter not matter at all to you?
Dual catless 2.5" vs. dual 3.0" ID downpipes doesn't really matter to me. Both are adequately sized to easily support 250bhp (x2). Besides, the 3.0" downpipes taper back down to 2.5" where the meet up with the midpipes. Granted, the downpipes have a pretty sharp bend. Which makes 2.5" more appealing than the 2.25" that would usually be associated with that per-bank power level.