Thread: What are some of the quietest exhausts?
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Old 03-10-2010, 09:46 PM   #14 (permalink)
Red370
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Originally Posted by MikeySed View Post
now for argument sake if you add a FI/Stillen cb... are you going to gain 15-20whp more?
No, it appears that the first opening up of the exhaust, whether it be HFC's, Test Pipes, or CBE, nets the most gains, you might see somewhere between 8-10, just speculation though.
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