74MM Bosch Throttle Body Adapter - BMW M20

This Adapter Kit allows you to bolt a Bosch 74mm to your OEM BMW M20 Intake Manifold. Our adapter is designed with a gradual taper internally to optimize performance. Fitting the 74 Throttle Body required spacing it outwards - this increases the plenum volume which aids in power output on turbo cars. This throttle body features a -8 ORB side port for those needing a port for brake boosters or other accessories / sensors. Be advised this is suited to the 2.5L BMW M20 intake manifolds found on cars with the 885 cylinder heads. The 2.7L e motors have smaller intake manifold inlet ports. Manufacturing: These adapters are CNC machined from billet 6061-T6. They are finished with an anodized surface treatment to maintain appearance over time. Notes: This kit comes complete with new mounting fastener sets and sealing O-rings. A plug for the side port is included as well should it not be needed. Bosch Throttle Body is NOT included.