Blox Racing Competition 2-Port Adjustable Fuel Pressure Regulator is made from billet aluminum, and each unit features -6AN inlet and return ports which offer an easier installation experience. It is designed to offer high performance and reliability. The competition series provides more pressure range and allows proper tuning of air-to-fuel ratio to get the maximum efficiency. Has different finishes to suit your liking. Part: 2 Port Adjustable Fuel Pressure Regulator (Universal). 1x BLOX FPR (Pre-assembled). 1x Barbed vacuum fitting. 1x 1/8 NPT block-off plug. 2x O-Rings for fittings. 2x Bracket screw lock washers. Listing and template services provided by inkFrog.