5.0 Inch Downpipe Back Single 2001-2004.5 GM 2500/3500 6.6L DURAMAX - Aluminized - No Muffler - Flo Pro Exhaust - 531111

FLO~PRO - BUILT IN ALBERTA FROM USA STEEL. At FLO~PRO, every exhaust system starts with premium 16-gauge aluminized or stainless steel sourced directly from U.S. mills. Each bend, hanger, and flange is designed, welded, and finished in Alberta, Canada by tradespeople who actually build the real thing not a 3D-scanned imitation of it. FLO~PRO continues to manufacture with North American steel, North American equipment, and North American standards. The difference shows in the fit, the weld quality, the longevity, and the performance you feel under load. Choose the original, not the scan. Built in Alberta. Made from USA steel. Horsepower you can hear. KEY FEATURES Manufactured entirely in Alberta, Canada Formed from U.S.-sourced 16-gauge aluminized or stainless steel never offshore substitutes Zero copycat parts Pre-welded contour bends for a painless install Canadian-fabricated hangers for true OE-level fitment Stronger flanges, cleaner welds, and more consistent alignment than scanned clones Lower EGTs and improved airflow thanks to real engineering