Thread: What are some of the quietest exhausts?
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Old 03-10-2010, 09:27 PM   #13 (permalink)
MikeySed
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Quote:
Originally Posted by Red370 View Post
I gained 15whp from my Berk HFC's w/ stock exhaust

Berk HFC dyno results
now for argument sake if you add a FI/Stillen cb... are you going to gain 15-20whp more?
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