Gibson Performance Exhaust 68600 Stainless Dual Extreme Exhaust System Y-pipe assembly, 2.5 inch mandrel-bent heavy-duty tubing with zinc plated factory style hangers, clamps and all hardware for easy bolt-on installation Gibson's Superflow Performance muffler delivers the powerful "big block" sound with increased power and torque; all welded construction, baffled and chambered for better volume efficiency with unrestricted flow; no packing to blow out or deteriorate 3.5 inch polished T304 stainless steel round slash cut tips Exits behind rear tires Lifetime limited warranty