GMPP Exhaust NNBS
#1
Thinking about changing to duals out the back setup. I would have to sell my current GMPP Sport system first. Made by Borla, Stainless GMC tip, Reg. Cab, Short Bed. Hearty sound, mellow at cruise. 10000 miles, around $750 new, asking $500. + shipping + time to swap out to new setup.
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