PRODUCT DETAILS
AEM Adjustable Fuel Pressure Regulator
The AEM fuel pressure regulator, SKU AEM-25-300BK, handles fuel flow for builds up to a 1000 horsepower fuel regulator spec, which makes it a legit high-performance Honda fuel regulator and a solid AEM pressure regulator Acura option too. We run these exact regulators on our own cars because they just work, especially when you start leaning on bigger pumps and boost.
What Sets it Apart
This Honda adjustable fuel regulator uses AEM’s patented interchangeable discharge ports, so you can match the discharge to your fuel pump instead of forcing one fixed outlet to do everything. Out of the box you get a single large discharge orifice, and you can buy additional ports separately if your combo needs something different. In the real world, that means you can tune your base pressure and keep the regulator stable at high flow, instead of watching pressure creep and chasing your tail in the tune.
Durable Construction
AEM CNC-machined fuel pressure regulator construction comes from 6061 T6, so yes, it’s an AEM billet aluminum regulator. It bolts up as AEM fuel regulator OEM fitment, meaning it mounts directly to the OEM fuel rail or an AEM High Volume Fuel Rail. Adjustment range runs from 20 psi up to whatever your pump can actually supply, and it uses a true 1:1 boost reference, so it acts like an AEM rising rate fuel regulator in the correct way, 1 psi of boost equals 1 psi more fuel pressure. That keeps injector delta pressure where you expect it, which keeps your tune predictable.
Clean Install
Fitting wise, the base comes tapped for AEM regulator -6 AN fittings or 9 16 x 18, and AEM includes a custom barb for the factory fuel hose. It’s manufactured and assembled in the USA, and the instructions are actually thorough enough that you won’t have to guess. If you’re trying to buy AEM fuel regulator for a Honda or you’re planning an Acura fuel pressure regulator purchase, this is the adjustable Honda fuel regulator we point people to when they ask for the best fuel regulator Honda option that still installs clean and supports real power.
1994 - 2001 Acura Integra GSR 1.8L 1992 - 1995 Honda Civic EX, Si 1.6L VTEC 1999 - 2000 Honda Civic Si 1.6L VTEC 1992 - 1995 Honda Civic DX, LX 1.5L 1992 - 1995 Honda del Sol S 1.5L 1992 - 1995 Honda del Sol Si 1.6L SOHC VTEC 1994 - 1997 Honda del Sol VTEC 1.6L DOHC VTEC