40% more feed than stock (+16% over SE) and 60% more scavenge (+9% over SE). Fits as stock replacement. USA manufactured from billet aluminum with High Flow 2" chromoly gerotor gears. Helps decrease oil & engine temperature by flowing more oil through the engine. Eliminates blow by and wet sumping by much improved scavenging. No more wet air cleaner elements. Note: Will fit stock cam support plates but, to maximize the oil pump's capabilities, it is advised to use a Feuling High Flow cam plate (cam support plate).