Quote:
Originally Posted by DunesRunner08
Everyone in the diesel exhaust industry will state that a 4" exhaust is great and will work great untill you start pushing 500hp or more. When you get more hp you get higher EGT's and the extra inch helps reduce them...I've heard it over and over again from everyone in the industry
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Quote:
Originally Posted by DunesRunner08
I know the guys are MBRP, RBP, and BD diesel real well...those are the guys who were telling me this...I'm sorry I take experts opinion...Im just trying to help out, jeez
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I used to believe this as well. Remeber the largest downpipe you can run without cutting/bending the firewall is 4"...
On top of that look @ Dockboy... 3.5" downpipe to 4" pipe, to 5" stacks in the bed.
He was making over 750 to the wheels.