duramax exhaust
12-23-2007, 01:33 PM
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duramax exhaust
Anybody running a aftermarket single 4" Duramax exhaust?? Thinking about doing this on my truck , also help lower egt's when towing.
12-24-2007, 03:58 PM
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I have a stock Duramax cat back on my truck and it fits fine.I have been thinking about going to a 4 inch but putting a quiet muffler on it.Im just a ls2 with alot of nitrous no turbo.
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