Borla cat-back exhaust system.

EXCEPT Convertible. System contains a merge X-Pipe for increased performance while enhancing the aggressive ATAK® sound. On vehicles equipped with AFM a check engine light will be activated. It is recommended for use with Long Tube Headers. Borla® Cat-Back™ & 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. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Just what you'd expect from the world's most experienced (and most winning) exhaust brand.

A cat-back system replaces everything behind the catalytic converter and leaves emissions equipment in place.