Combine all the needed components to finish your engine's oiling system Kit increases oil pressure, oil volume, engine oil flow and return oil scavenging, eliminating wet sumping and oily air cleaners; test results show 25?- 35? cooler engine temperatures, 15?- 30? cooler oil temperatures, 15-30 more lb of oil pressure and quieter smoother engine operation; results also show a substantial increase of oil pressure and 3 H.P. and 4 ft/lb of torque to the rear wheel Includes bearing retainer plate and hardware.. OIL SYSTEM RS W/C M8