The BLOX Racing Honda K-series throttle body adapter replacement gasket for the PRB side is sized at 62.5mm and intended as a direct replacement seal for that adapter orientation. It restores proper sealing where the throttle body meets the adapter on K-series conversions and is intended for use during adapter service or replacement to ensure correct fit and function.
BLOX Racing Honda K-Series Throttle Body Adapter Replacement Gasket PRB Side 62.5mm