Exhaust
Lead Driver
Joined: Sep 2002
Posts: 9,553
Likes: 2,034
From: North Texas
This. The stock muffler is straight through and 3.5" I think and will support 400rwhp on the high end. At that point a 4" would help average torque.
Does your state require the cat? You are better off doing slapping a downpipe on it and keeping the rest stock.
Lead Driver
Joined: May 2009
Posts: 6,815
Likes: 708
From: Tobyhanma, PA
My truck has a straight 4" pipe from downpipe back, no cat, no muffler. I can barely hear the exhaist at all unless I have the windows down and riding next to something (side exit exhaust on front of right rear tire)
Point being these trucks don't have very loud exhaust in my experience. The noise comes from the engine itself.
Point being these trucks don't have very loud exhaust in my experience. The noise comes from the engine itself.
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