Skunk2 is proud to introduce the 74mm Pro Series Throttle Body for Honda K20A/ K20A2/ K20A3/ K20Z1 engines found in the 2002-2005 Civic Si and 2002-2006 RSX Base & Type-S chassis. A larger throttle body is key to producing additional power throughout the powerband on modified engines with increased airflow demands and the Skunk2’s 70mm Pro Series Throttle Body delivers! Sealed ball bearings, a precision machined throttle plate and a honed oversized bore insures smooth operation on the most aggressive naturally aspirated and forced induction applications. FEATURES: CNC Machined from Forged Billet 6061-T6 Aluminum Hard Anodized for Corrosion Resistance and Durability Precision Machined Brass Throttle Plate Compatible w/ OEM Throttle Cable Sealed Ball Bearings for Smooth Operation Retains IACV Circuit Includes Throttle Body Gasket and Hardware Notes: Direct Replacement for PRB/ PRC Style Throttle Body - Must Use Throttle Body Adapter for Late Model K Series Engines Fitment: 2002 - 2005 Honda Civic (2.0L Si) 2002 - 2006 Acura RSX (2.0L Type S) CNC Machined from Forged Billet 6061-T6 Aluminum Hard Anodized for Corrosion Resistance and Durability Precision Machined Brass Throttle Plate Compatible w/ OEM Throttle Cable Sealed Ball Bearings for Smooth Operation