The aFe MACHForce XP 3" to 2.5" 304 stainless cat-back for 2014–2016 BMW M235i is constructed from mandrel-bent 304 stainless tubing and includes a high-flow muffler with dual 4" polished tips. Dyno testing shows gains up to +18 HP and +27 lb-ft torque. This system uses factory-style flanges and hangers for a bolt-on installation with an integrated factory-style exhaust valve that uses the factory motor.
aFe MACH Force XP 3in to 2.5in 304 SS Cat-Back Exhaust w/ Polished Tips 14-16 BMW M235i