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  1. Coveman

    Exhaust Question- 1999 k1500 Suburban, 350ci

    I’m ready to replace the replacement exhaust system (flowmaster cat-back) with a stainless magnaflow system. The magnaflow fitment asks whether my system has single or double pipes going into my muffler. The flowmaster had a y-pipe design (two flanges for the cats) and a single muffler inlet...
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