Cam sprockets enable an engine's cam timing to match its tuning state, whether it is stock, modified, forced induction, or normally aspirated. Cam sprockets are used by top race teams throughout the world to optimize their cars. And they are simply a must if you have aftermarket cams installed. One of best options for the GT's 2.0 Beta engine comes from the fine folks at KSpec. They offer a high quality, lightweight cam sprocket available at a reasonable $159 plus shipping.