If you are swapping to a drive by wire throttle body or just a bigger 74mm, then we have a small adapter to help the transition of air. 74mm throttle bodies should bolt to the m120 manifold fine but we've added a small chamfer to help the air flow better and o-rings to make it re-sealable. Here is what the it includes:
- 2 x 74mm to 70mm plates (note the throttle body must have the same bolt spread)
- 4 x O-rings
- 8 x M8x65 DIN 912 cap head bolts