{"product_id":"aem-25-305bk-high-capacity-adjustable-fuel-pressure-regulator-40-130-psi-black-6an-e85-compatible","title":"AEM High Capacity Adjustable Fuel Pressure Regulator (40-130 PSI, -6AN, E85) – Universal for Turbo Engines and Competition","description":"\u003cp\u003eThe \u003cstrong\u003eAEM 25-305BK\u003c\/strong\u003e is a high-performance fuel pressure regulator built for systems that demand high flow and stability. It features an oversized return port and a long-travel spring that eliminate pressure fluctuations even with 400+ LPH fuel pumps. Perfect for turbo engines, race builds, and any project that needs consistent pressure under extreme conditions.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e40 to 130 PSI range (2.76 – 8.96 bar)\u003c\/strong\u003e — Long spring allows precise adjustment without losing stability.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eLarge return port\u003c\/strong\u003e — Handles high-flow pumps without creep or unwanted pressure spikes.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1:1 rising rate\u003c\/strong\u003e — Automatically increases fuel pressure in parallel with turbo or supercharger boost.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eCompatible with E85, methanol, and race fuels\u003c\/strong\u003e — Internal materials resist corrosion from aggressive fuels.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e6061-T6 billet aluminum body, CNC machined\u003c\/strong\u003e — Black anodized, robust, and professionally finished.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e AEM 25-305BK\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePressure range:\u003c\/strong\u003e 40 – 130 PSI (2.76 – 8.96 bar)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eInlet ports:\u003c\/strong\u003e 2 × -6AN ORB (9\/16\"-18)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eReturn port:\u003c\/strong\u003e 1 × -6AN ORB (9\/16\"-18)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eGauge port:\u003c\/strong\u003e 1\/8\" NPT\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eVacuum\/boost connection:\u003c\/strong\u003e 3\/16\" (5 mm)\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFactory setting:\u003c\/strong\u003e 40 PSI\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e 6061-T6 billet aluminum\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Black anodized\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal\u003c\/strong\u003e. Fits EFI (electronic fuel injection) and high-pressure carburetor systems. Optimized for turbocharged, supercharged, and high-output naturally aspirated engines. Compatible with gasoline, E85, ethanol, methanol, and race fuels.\u003c\/p\u003e\n\n\u003ch3\u003eWhy the High Capacity model?\u003c\/h3\u003e\n\u003cp\u003eUnlike standard regulators (such as the AEM 25-302BK), the \u003cstrong\u003e25-305BK\u003c\/strong\u003e eliminates the creep phenomenon that occurs with high-flow pumps (+400 LPH). Its one-piece return port ensures excess fuel returns to the tank without restriction, keeping fuel rail pressure stable at all times.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eIs it compatible with E85?\u003c\/strong\u003e Yes, all internal components resist corrosion from alcohol-based fuels.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDoes it include a gauge?\u003c\/strong\u003e No, but it has a standard 1\/8\" NPT port for installing the gauge of your choice.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eWill it work for street use?\u003c\/strong\u003e Yes, it works perfectly for both street and track.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePackage contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 × AEM 25-305BK fuel pressure regulator\u003c\/li\u003e\n\u003cli\u003e1 × Universal mounting bracket\u003c\/li\u003e\n\u003cli\u003e4 × Mounting bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026 warranty\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIn stock.\u003c\/strong\u003e Fast shipping and guaranteed compatibility with systems using -6AN fittings.\u003c\/p\u003e","brand":"AEM","offers":[{"title":"Default Title","offer_id":51808177946906,"sku":null,"price":193.63,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0964\/9324\/0602\/files\/6989d743ca681_aem-25-305bk-high-capacity-ayarlanabilir-yakit-basin_C3_A7-regulatoru-40-130-psi-siyah-6an-e85-uyumlu-25-305bk-3e928517-1280x1280_fill.webp?v=1773170888","url":"https:\/\/remedio.parts\/en\/products\/aem-25-305bk-high-capacity-adjustable-fuel-pressure-regulator-40-130-psi-black-6an-e85-compatible","provider":"Remedio Digital SL","version":"1.0","type":"link"}