AEM AEM 23-831BK - Evo 8 & IX Black Tru-Time Cam Gear AEM - 23-831BKAEM Tru-Time Adjustable Cam GearTru-Time Adjustable Cam Gear, Black Anodized, 5-Bolt design, Fits Mitsubishi 4G63 engineAEM Tru-Time Adjustable Camshaft Gears increase horsepower and torque without having to change the camshaft(s) and are... MSRP: $224.95 Was: Now: $199.95 Add to Cart