AEM Adjustable Fuel Pressure Regulator for 5th Gen Subaru Impreza

CARB Compliance / Exemption Warning: If you live in California and your application for this product is not CARB Compliant / Exempt, then you cannot purchase it for public highway or street use (in that case it could only be used for formally sanctioned race use on a racing vehicle that may never be used on a public highway or street). If your application is not CARB Compliant / Exempt and you're shipping to California, our system will let you know on the final checkout page.

AEM's Adjustable Fuel Pressure Regulator is constructed of 6061 T-6 billet aluminum and is capable of supporting enough fuel flow for engines in excess of 1000 horsepower. Only AEM regulators have replaceable discharge ports which allows the user to tailor the regulator's output to the output of ANY fuel pump, whether it be the stock Subaru Impreza fuel pump or a high-flow aftermarket pump. AEM also includes a custom barb fitting to accommodate the factory fuel hose and the base of each regulator is tapped to accept a -6 AN or 9/16"x18 fittings.

Key Features:

• Only AEM adjustable fuel pressure regulators have replaceable discharge ports to match regulator and fuel pump output.
• Compatible with stock Subaru Impreza or AEM High Volume Fuel Rail.
• Adjustable from 20 PSI to maximum fuel pump capacity rating.
• Features a sleek black finish.