Aeromotive A1000 Adjustable EFI Regulator (2) -8 Inlet/-6 Return - 13139

Aeromotive A1000 Gen-II EFI Fuel Pressure Regulator — ORB-8 (13139)

The A1000 is the regulator that shows up on more street and race cars than any other, and the Gen-II is the current version — same high-flow design and pressure control, in a smaller, lighter body. Adjustable base pressure from 40 to 75 psi with 1:1 vacuum and boost reference, so fuel pressure tracks manifold pressure the way the tune expects.

Compatible with gas, ethanol, methanol, and diesel, which makes it a straightforward choice for a flex-fuel build or a car that sees race fuel.

Two ORB-08 inlet/outlet ports, one ORB-06 return port, and a dedicated 1/8" NPT gauge port so you're not tapping a fitting to see pressure. Bright-dip black anodized cap and base.

Engineered for A1000-class and smaller pumps. If you're running an Eliminator, dual A1000s, or a large gear pump, step to the Extreme Flow regulator instead.

Ports are ORB, not pipe thread. ORB-08 to AN fittings for the inlets — 15605 for AN-06 line, 15607 for AN-08, 15461 for AN-10. Return port takes 15606 for AN-06 or 15649 for AN-08.

The Gen-II's finish is also a counterfeit check — the knock-offs flooding the market don't match it.

Not legal for sale or use on emission-controlled vehicles except as a direct OEM replacement.