Used Fram cast alum. HP-6 oil filter mount. It can be mounted almost any where on a flat surface a racer chooses such as the motor plate or off the fire wall with three 3/8" bolts. Inlet/outlet fittings are -12 AN that are industry standard and a HP-6 type System 1 cleanable oil filter can be used or a Fram/Wix paper style with 1.50" - 12 threads. The finish is natural alum. and the assm. comes with a Wix #5122R oil filter as well as two -12 AN plugs with one bring drilled 1/8" pipe for a pressure gauge port. HP-1 type filters will not fit on this mount.