- 126% feed and 131% scavenge volume compared to OEM (stock) M8 fourth generation oil pumps at 1000 rpm
- 123% feed and 146% scavenge volume compared to OEM (stock) M8 fourth generation oil pumps at 2500 rpm
- Scavenge side discharge was improved by modifying the suction ratio to help eliminate sumping from excess oil in the crankcase
- Improved oil flow by inserting an oil passage correction spacer between the large-capacity oil pump body and the cam support plate
- For air-cooled models only.
- Includes an oil pump-to-case seal. Fits air/oil-cooled models only.