EVIL ENERGY 6AN Adjustable Fuel Pressure Regulator EFI Bypass Return 30-70psi Black&Red

Decent kit. But, DO NOT USE the included hoses on an portion of your fuel system. While they look nice, they are crap rubber without nylon reinforced walls. The rubber will TEAR easily and blow a line and leak. Use REAL fuel line with nylon reinforcements, not this pretty SS braided crap rubber hose in the kit. Other wise, the regulator works.

Works great , reliable so far after 2years , i use up to 15psi boost rising the fuel pressure up to 80psi

Really good product, easy to install and does what it should

This regulator worked great on a customer's 1978 Datsun 280z to replace a unobtainable factory regulator. I was able to adjust the fuel pressure to 34 PSI with the vacuum hose unhooked, which is critical for L-Jetronic EFI system. I did see a four PSI difference between between the supplied gauge and my OTC fuel gauge that I used to set the fuel pressure. It wasn't a deal breaker. The car ran great after adjusting the fuel pressure. The quality and finish of the regulator and fittings are very good. Worth the money and the pressure is very adjustable. Do yourself a favor and purchase this adjustable regulator. The non-adjustable regulator some vendors are selling as a replacement for the Datsun 280z and 280zx has the wrong working pressure at 42 PSI. This makes the car run was to rich at the pressure.

Works perfect! Love how I can fine tune and adjust