CXRacing Oil Filter Sandwich Adapter For Mazda Miata MX-5 MVP Honda Billet CNC Oil Filter Sandwich Adapter. For many Cars. Fits M20 threaded Oil Filter. (many Toyota and Mitsubishi have these threads) It Mounts between the Block and oil Filter, provides in and out ports, with connectors that fit AN 8 fitting. There are two O-Rings: 2 3/4" and 2 3/8", support many filters and Blocks. Center adapter is 20mm-15 threaded, support oil filter that has M20 thread, and M20 block fitting. 3 ports is 1/8 NPT for running oil to turbo oil cooling, gauge or other accessories. 1 1/8" height