AEM 23-831BK Black Tru-Time Adjustable Cam Gear Applications: 03-05 Mitsubishi Lancer EVO VIII 4G63T True laser-etched markings on the leading edge of the gear allow for quick, accurate adjustments CNC-machined from 6061-T6 billet aluminum Comprehensive installation instructions, recommended cam gear settings and decals included For off-road use only