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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
AEM 25-305BK
AEM Adjustable Fuel Pressure Regulator. Black in color. Offset flange for Acura and Honda with 90-degree return line connection.
AEM adjustable fuel pressure regulators for Honda/Acura are capable of supplying the necessary fuel flow for engines up to 1,000 horsepower. Our patented interchangeable discharge ports allow the regulator's output to match that of any fuel pump. Includes one large discharge orifice; additional ports sold separately. AEM includes a custom barb fitting to accommodate the OEM fuel hose, and the base of each regulator is threaded to accept -6 AN or 9/16" x 18" connections.
CNC machined from 6061-T6 billet aluminum.
Mounts directly to the OEM fuel rail or AEM high-flow fuel rail.
Patented interchangeable discharge orifices accommodate the output of virtually any fuel pump (includes one large port).
Supports -6 AN or 9/16" x 18" connections.
Adjustable pressure from 20 psi to the fuel pump's maximum capacity.
Boost-dependent fuel pressure rise ratio (1:1).
No additional parts required for installation.
Patent No. 6,298,828.
AEM products come with a 12-month warranty.










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.