Skunk2 Pro 74mm Throttle Body - B/D/F/H Series - BlackSkunk2 is proud to introduce the 74mm Pro Series Throttle Body for Honda B16 B17 B18 B20 D15 D16 F20 F22 F23 H22 and H23 engines found in a number of chassis from 1988 2005. A larger throttle body is key to producing additional power throughout the powerband on modified engines with increased airflow demands and the Skunk2s 74mm Pro Series Throttle Body delivers! Sealed ball bearings, a precision machined throttle plate and a honed oversized bore