This universal bypass-style fuel pressure regulator lets you set and hold fuel pressure on EFI and carbureted fuel systems without a vehicle-specific housing or bracket. A longer spring widens the adjustment window to 40-130 psi, and the 1:1 boost-dependent rise rate lifts fuel pressure in step with manifold boost, which suits turbocharged and supercharged builds.

AEM 25-305BK Technical Specifications:

• Adjustment range is 40-130 psi thanks to a longer spring.
• Fuel pressure rises 1:1 with boost pressure.
• Two -6 AN (9/16-18) ORB O-ring inlet ports and one -6 AN outlet port handle the fuel feed and return plumbing.
• An integrated 1/8 in. NPT port accepts a fuel pressure gauge.
• The body is CNC-machined from 6061-T6 billet aluminum with a black anodized finish.
• Compatible with alcohol fuels and race gas.
• A universal mounting bracket with four 10-32 x 1/2 in. screws is included.