Your GT500 will develop a louder and throatier exhaust note with the Ford Racing Sport axle-back. The kit is uniquely designed and tuned to provide optimum performance and aggressive sound. Constructed from T304 stainless steel with chrome plated Ford Racing embossed tips. Ultra-smooth mandrel bends, warp-free flanges and superior craftsmanship provide great durability and a long lasting life.. Sport Muffler Kit; 304 Stainless Steel; Incl. Dual Mufflers/Quad Chrome Plated Tips;. Ford Racing 2013-2014 Mustang Shelby GT500 Sport Muffler Kit (49 STATE). 2013-2014 Mustang Shelby GT500 Sport Muffler Kit (49 State). 304 Stainless Steel Muffler Body Construction. 304 Stainless Steel Chrome-Plated 4 in. Tips. 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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