BOR Axle Back S-TypeExhaust System Kit2011-2012 Ford Mustang Shelby GT500 5.4L V8 SC Manual Transmission Rear Wheel Drive 2-Door Coupe/ConvertibleMillion Mile WarrantyBorla Cat-Back And Axle-Back exhaust systems feature patented straight-through...
Borla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.