Quantum fuel pressure regulators are made to be direct drop-in replacements of their OEM equivalent. They meet or exceed OEM specifications and performance. A fuel pressure regulator is crucial to keeping your vehicles psi at the perfect level. With a lifetime warranty and guaranteed fitment, you can save yourself the cost of buying a complete fuel pump assembly to replace one component of your fuel system. Back on the road or the trail with the assurance of OEM-grade durability and hassle-free warranty.