aFe Power 49-12001 Large Bore HD Turbo-Back System Features: 4 in. Mandrel Bent 409 Stainless Steel Tubing Maximum Flow High Flow Muffler Lower EGTs Bayonet Style Hangers For Easy Installation Increased Horsepower And Torque Limited Lifetime Warranty Height: 49.00 Width: 23.00 Length: 13.00 Weight: 70.00 lbs