Thread: Exhaust systems
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Old 09-10-2013, 04:15 PM   #6
K10Scottsdale78
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Join Date: Jun 2013
Location: Marilla, NY
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Re: Exhaust systems

Quote:
Originally Posted by y5mgisi View Post
Actually, Dual 3" is wayyyy to big for your 400! For 3" duals you better be paicking a big, big block at over 500hp.

http://www.exhaustvideos.com/faq/how...pipe-diameter/
Really? I see the newer 2500HD silverados and their exhaust looks huge for a 6 liter. My neighbor drives one and the pipes on his truck look massive compared to mine. So I figured if my truck has a higher displacement, that it would be better with bigger pipes. So would a 2.5 work? I just think that 2.25 seems way too small for a 6.6L gas job.
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