




Photos shown for illustration; shade and shape may differ slightly.
Skunk2 Alpha Throttle Body 66 mm / 70 mm for Honda B16, B17, B18, B20, D15, D16, F20, F22, F23, H22 and H23
The Skunk2 Alpha throttle body has a larger bore than the factory unit, 66 mm or 70 mm, for modified Honda B16, B17, B18, B20, D15, D16, F20, F22, F23, H22 and H23 engines that need more air. It works with the factory throttle cable.
Specifications
| Brand | Skunk2 Racing |
| Code | 309-05-1030, 309-05-1050 |
| Bore | 66 mm, 70 mm |
| Material | Precision die-cast aluminium, fine shot-blasted |
| Throttle plate | Precision machined brass |
| Shaft | Sealed ball bearings |
| Included | New gasket and hardware |
Which cars it fits
- Honda B16, B17, B18, B20, D15, D16, F20, F22, F23, H22 and H23 engines
What to check
- Because of the larger bore, it needs a Skunk2 Pro Series manifold or a manifold flange matched to the bore, with the IAC passage kept separate.
- Not compatible with D-series engines with down-flow intake manifolds.
- Manual transmission only.
- Fits the F20C but not the F22C.
- Not compatible with the B18C GS-R intake manifold.
- Idle adjustment screws for fine tuning.

