Blox Racing Dual-pattern K-series 70mm Tuner Series Throttle Body - 06-11 Honda Civic Si - BXIM-00223Blox 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 new gasket. All factory sensors can be reused without any