Originally Posted by Bad340fish
Probably nothing, that factory guy isn't going to tell everyone that they label the same filter for everyone. My .02.

The GPM flow difference between the R and standard filter is staggering. How much does a high volume R or LA oil pump flow?


What the engine will let the pump flow is the determining factor.

I believe all filters are normally rated without a restriction. Based on past tests I’m betting most engines won’t allow more than 5 gpm to pass through the system.