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 Cat-Back Exhaust System. 2014-2017 Audi 8V A3 Quattro 2.0L 4 Cyl. Turbo Automatic/ Manual Transmission All Wheel Drive (AWD) 4-Door.
