Borla cat-back exhaust system.

The system features our Hydroformed SwithFire® Technology. Completely eliminating the turbulent center intersection of a standard X-Pipe, BORLA®'S patented SwitchFire® design truly blends the combustion pulses from both sides of the engine for improved performance and a custom sound. The computer numerical control (CNC) formed mandrel bent pipes ensure maximum flow for horsepower and torque along with an accurate fit. The muffler is specifically designed to deliver the classic S-Type sound without any drone inside the vehicle. The system will NOT will fit trucks with dual rear wheels. 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.

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