* Magnaflow CatBack Exhaust * Stainless Steel Tubing * O.D. Size: 3in. * TIP O.D: 4" tips * Dual Split Rear Exit * Round Mufflers * Polished SS Tips Magnaflow Stainless Steel Competition 3" catback for the 2011-2012 Mustang 5.0L GT Boss 302 is a mandrel bent, direct-fit system featuring 4" polished Dual Exit Stainless Steel Tips. This catback system replaces the piping, mufflers and tailpipes located after the rear axle. Magnaflow Exhaust systems are the most popular exhaust systems on the market today. Magnaflow designs and builds each system to fit and sound perfectly for your vehicle, whether it be a car or truck, American made or foreign. Magnaflow exhaust systems are all built with high grade stainless steel components and feature stainless welds and clamps. Backed by a Lifetime Warranty. No one else gives you the bold clean styling of our Aftermarket Dress Ups, Suspension and Performance Parts for your American Muscle Car like UPR Products! Click Here for Instructions Click Here to Listen to the Exhaust Fits these Vehicles: 2011 2012 GT 5.0L Boss 302 V8 Mustang Steeda Roush & Saleen Vehicles.