aFe Large Bore-HD 4 IN 409 Stainless Steel Down-Pipe Back Exhaust System w/Muffler/Polished Tip GM Diesel Trucks 11-15 V8-6.6L (td) LML - 49-44032

This aFe Mach Force XP Turbo Back exhaust system produces 5hp, 16lbs. x ft. torque and outflows the factory exhaust by 178. This exhaust is constructed out of mandrel bent, 4 inch 409 stainless steel for maximum flow and corrosion resistance. The dual tip construction give a rugged look with a massive improvement in breathing for reduced EGTs and maximum air flow. The system comes complete with all tubing, flanges, band clamps, bayonet style hangers, mufflers and is finished with a high luster polished 304 stainless steel tip.