Blox Racing K-Series Tuner Series 72mm Cast Aluminum Throttle Body - BXIM-00224Blox Racing K Series Tuner Series 72mm Cast Aluminum Throttle Body Blox Racing Tuner Series throttle body featured here is cast from high quality aluminum. In addition, precision machined butterfly plates proper and consistent opening and closing. New throttle springs provide crisp response each time the engine is revved. The IACV can be used or blocked off for full race applications with the supplied port plug. Throttle bodies include hardware and