OBX Performance Type-H Exhaust System 03-06 Mazda 3 2.0L 2.3L ALL 4 Dr Sedan 14 Gauge Mandrel Bent T304 Stainless Steel Catback Exhaust System Dyno Proven Performance To Increase Horsepower And Torque With Great Throttle Response Straight Through Resonator Included To Keep Exhaust Tone Deep And Low Backed By Manufacturer Limited Lifetime Warranty