The MACH Force XP exhaust system for the BMW 325i/ci 330i/ci E46 produced 13 horsepower and 15 lbs. x ft. of torque. This exhaust system is constructed from 2.25†mandrel bent 409 stainless steel and is MIG-welded for high strength. The system uses a true dual in and dual out high flow muffler with 2.25†tubing which improves performance across the entire power band while maintaining a great tone. To finish off this exhaust are dual, double wall resonated angle cut 304 stainless steel tips. This exhaust uses all factory hanger locations for a hassle-free installation. No modifications necessary.