HKS Hi-power Exhaust System - MazdaSpeed3 2007-09
HKS cat-back exhaust system is developed to improve your torque and
Full 3 inch cat-back with a great deep throaty sound. Adds HP and increased throttle response. Piping is mandrel bent with a stainless steel muffler and includes a bung for the 02 sensor.
Sound: Low deep growling sound. Provides a loud tone under acceleration, moderately quite at idle.
Fits: MazdaSpeed3 2007-09