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      06-14-2007, 08:06 AM   #3
bnj
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Drives: e92 335i
Join Date: Nov 2006
Location: Helsinki

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Quote:
Originally Posted by Sniz View Post
I am most likely having a custom exhaust made soon for my 335 coupe and was wondering on this car is 3" exhaust worth it over the 2.5". On my previous turbo cars 3" was the way to go because they had larger turbo's that really benefited from the reduction in backpressure, but with the 335 I just dont feel much turbo lag.

Obviously the biggest gains would be seen with 3" downpipes and full 3" exhaust, but I dont plan on replacing downpipes, at least not yet.
Had you two exhausts in your previous turbo cars? 2 x 2.5" is much more than 1 x 3".
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