watch which way you plumb the adapter there is usually a check valve in the filter.If you route it backwards,you'll starve the enging for
oil.Last year a mamber went through at least three engines ( high dollar stroker units) untill it occured to someone.I thought Coast high performance ate the engines.I'm in my own ordeal .I just have a small leak caused by a dinged male A&N fitting.I'm waiting for a conical seal to ensure I don't have to do this again.