aFe MACHForce XP Exhaust 3in Stainless Stee CB/10-13 Chevy Camaro V8-6.2L (td) (pol tip)aFe is proud to announce the MACH Force XP cat back exhaust system for the 2010 2013 Chevrolet Camaro with the V8 6. 2L engine. In recent testing this system produced 22 horsepower and 26 lbs. x ft. of torque. This exhaust system is constructed from 3?, mandrel bent, stainless steel and is MIG welded. The system uses dual, high flow mufflers with 3? tubing which improves performance across the power band while maintaining the true muscle car sound.