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. S-Type II Axle-Back Exhaust System. 2006-2013 Chevrolet Corvette Z06/ZR1 (C6 Z06/C6 ZR1) 7.0L/6.2L V8 Manual Transmission Rear Wheel Drive (RWD) 2-Door Coupe