Control your fuel system with the Grams Performance fuel pressure regulator. These regulators feature a black anodized top and high quality 6061 hard anodized aluminum bottom. At the heart of the regulator is a durable custom diaphragm, a stainless steel internal orifice, and a high pressure spring that allows for pressure adjustment ranging from 30 - 118 psi (2 – 8 bar). Each regulator features two AN -10 ORB inlets, one AN -06 ORB outlet, boost/vacuum port, gauge port and provisions for a mounting bracket. DID YOU KNOW? Grams Performance regulators are designed with simplicity and practicality in mind: a hard anodized aluminum bottom allows for all fuels types to flow freely through diaphragm.