I installed the 4" exhaust on my 96 Suburban in about 2 hours with only one arm.....lol...recovering from rotator cuff surgery was a bad time to lose the exhaust system! I had to cut about 3" off the primary pipe, and didn't use the secondary pipe at all....
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From: Alfred R.

This part fixed every problem my truck had. You should call this part THE MIRACLE MODULE and that's pure fact.
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From: Vernon P.