Impeller and spacer only. Fit it in place of the stock X charger, or machine your rear housing to fit the 137mm wheel.
Requires the 2008-and-newer supercharger oiling system.
- Engine Tech 137 x 4mm
- 13-13.5 psi at 8100 RPM, 15 psi at 8500 RPM
- Impeller and spacer only
- Needs 2008+ oiling system
