We love the AEM Fuel Pressure Regulators because they are very affordable, they come with all the hardware you need, and they just work. An adjustable fuel pressure regulator is a must when you are...

This harness allows you to connect your AEM wideband O2 air/fuel ratio sensors to the Infinity's on-board wideband UEGO controllers (72" length).

AEM's Honda/Acura Adjustable Fuel Pressure Regulators are capable of supporting enough fuel flow for engines up to 1000 horsepower. Our patented interchangeable discharge ports enable the regulator's...

AEM's Honda/Acura Adjustable Fuel Pressure Regulators are capable of supporting enough fuel flow for engines up to 1000 horsepower. Our patented interchangeable discharge ports enable the regulator's...

AEM Adjustable Fuel Pressure Regulator Rebuild Kit. Includes: Diaphragm, Single Large Return Orifice & O-Ring For: 25-300BK 25-301BK 25-303BK 24-304BKAEM Adjustable Fuel Pressure Regulator...

AEM's Honda/Acura Adjustable Fuel Pressure Regulators are capable of supporting enough fuel flow for engines up to 1000 horsepower. Our patented interchangeable discharge ports enable the regulator's...