BOR Cat Back S-TypeExhaust System Kit2013-2016 BMW F10 M5 4.4L 8 Cyl. Automatic Transmission, Rear Wheel Drive, 4-Door.Million Mile WarrantyBorla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core...
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.