MBRP 18-22 Ford Mustang GT 5L T304 SS 3in Cat-Back Dual Rear w/4in Quad Carbon Fiber Tips (Race)Unleash your vehicle's most aggressive sound with an MBRP Race Profile exhaust. Hear the biggest gains and turn heads every time you hit the gas. Your vehicle will sound like it belongs on a race track. Pro Series Cat Back Exhaust System; 3 in.; Dual Rear Exit; 4 in. Quad Carbon Fiber Tips; Race Version; T304 Stainless Steel; 4in. OD CF Tips Included "Non Active Exhaust only". Active Exhaust Function NOT Retained On Factory Equipped Vehicles. Pipe