Gibson Performance 60-0001 Features: 4 in. Mandrel Bent Stainless Tubing Incl. Factory Style Hangers And Band Clamps Incl. All Hardware For Easy Bolt On Installation Superflow Performance Non-Packed Straight-Thru Muffler Delivers A Powerful Big Block Sound w/Increased Power And Torque Muffler Is All Welded Construction Giant 6 in. Black Ceramic Coated Round Rolled Slash Cut Tip Exits On Passenger Side Behind The Rear Tire Lifetime Limited Warranty Height: 14.00 Width: 12.00 Length: 57.00 Weight: 55.00 lbs Fitment: 2011/GMC/Sierra 1500/XFE Crew Cab Pickup 4-Door/5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated::Bed Length = 69.3, Exceeds Some State Sound Requirements^^2011/GMC/Sierra 1500/WT Extended Cab Pickup 4-Door/5.3L 5328CC 325Cu. In. V8 FLEX OHV Naturally Aspirated::Bed Length = 78.7, Exceeds Some State Sound Requirements^...