Selling a brand new ISR Performance Fuel Pressure Regulator (FPR) — universal/adjustable performance regulator perfect for aftermarket EFI builds. This is the V2 version with a 30–100 psi adjustment range and multiple ports: • Two -6 AN ORB inlet ports • One -6 AN ORB return port • 1/8″ NPT gauge port (gauge and fittings not included) • Ethanol/E85 compatible • Ideal for high‑boost/tuned or custom fuel system setups This FPR is great for turbo builds, big‑injector setups, and any performance fuel system that needs precise pressure control.