The Racer X Fabrication OEM FPR adapter for the 1991-1995 Toyota MR2 will allow you to replace your fuel rail and retain the OEM fuel pressure regulator. When it comes time to replace your OEM fuel rail with a top feed fuel rail for the Gen 2 or Gen 3 it often means replacing your OEM FPR as well. The Racer X FPR adapter allows you to retain the OEM fuel pressure regulator and simplify your installation. The FPR adapter is threaded for -8AN rails (3/4-16) and features a viton o-ring seal that allows for quick installation. The fitting is CNC machined, anodized black for corrosion resistance and is compatible with all fuel types.