Here is a chart one of our members(Bronze MFP) came across on an Aussie skyline forum. its important to remember these are for ESTIMATED horsepower numbers don't take them very literally. just use it for a general idea of what you are going for.
1st Manufacturer is HKS (duh)2nd is Greddy 3rd is APEXi4th is KKK5th is power enterprises
Contributed by: Kamin/Bronze MFP
