Ford Racing Performance Parts brings you the ultimate in high performance with their exhaust systems. All components are made from stainless steel and are produced to Ford Racing specifications. These kits are attractively priced, high-quality, and guaranteed to fit and produce world-class power and low restriction. Depending on the application and kit, X-pipes and hardware are included.. Sport Muffler Kit; 304 Stainless Steel; Incl. Dual Mufflers/Dual 4 in. Chrome Plated Tips/Hardware;. Ford Racing 2011-2014 Mustang GT/BOSS Sport Muffler Kit (49 STATE). 304 Stainless Steel Chrome Plated Ford Racing Embossed 4 in. Tips. 2011-2014 Mustang GT/Boss Sport Muffler Kit (49 State). Designed To Eliminate Exhaust Drone at Sustained RPMs. 304 Stainless Steel Muffler Body Construction. Requires Factory Muffler Clamps. Louder Throatier Exhaust Noise. 49 State Drive-By Noise Legal. Exhaust Muffler Kit. Sport Muffler Kit. Made in the USA. Muffler Kit

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