Gravity Performance decats instantly increase power by allowing exhaust gasses to exit the vehicle quicker. Our decats are designed to be direct replacements for the OEM catalytic converter, ensuring smooth installation every time. ---Large bellmouth opening, designed to maximise exhaust flow ---Designed to improve power and torque across the entire RPM range ---Noticeably improves throttle response ---Free flowing to get the most from the EJ20 boxer engine ---Sold for off-road / track-use only Fitment ---Subaru Impreza WRX STi Spec C 2001-2006 Twin Scroll models.
