304 Stainless Steel. The Ford Racing GT500 Sport Axle-Back exhaust system is constructed from high quality T-304 Stainless Steel tubing and features polished 304 stainless "quad" 4"tips with embossed Ford Racing logos. The tips exit in the stock locations so no modifications are required to the rear bumper cover.
Application. This Ford Racing Sport Axle-Back exhaust system is designed as a direct bolt on replacement for the 2013-2014 Shelby GT500 Mustang for both great looks and great sound.
Technical Note. The Ford Racing Sport Axle-Back is 49 state drive-by noise legal, not legal in California.