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sosd
10/01/2009, 6:22PM
About: 2009 Chevrolet Silverado 2500HD LTZ Crew Cab 4WD
Mufflers
Does anyone have a recommendation for an aftermarket exhaust ( dual or single) and performance chips (for power not speed) for the
6.0?
Justin1253
10/07/2009, 12:19AM
i have 3 inch all the way back to 4 inch tips on my 8.1, as far as programmers go i put a hypertec max energy on it and i made a huge difference towing

