{"product_id":"cobb-tuning-fuel-pressure-regulator-to-fuel-rail-kit-2008-2021-subaru-sti-qwpmbv","title":"COBB Tuning Fuel Pressure Regulator to Fuel Rail Kit - 2008-2021 Subaru STI","description":"\u003ch4\u003e\u003cstrong\u003eReal-Time Fuel Pressure Data Through the Accessport\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Cobb CAN Fuel Pressure Kit for the 2008-2021 Subaru WRX STI adds real-time fuel pressure monitoring to the Accessport V3 without tapping into the vehicle's OBDII system. The sensor reads fuel pressure directly from the fuel rail and transmits it to the Accessport via a dedicated CAN bus connection. For builds running elevated boost and modified fueling, knowing fuel pressure in real time is essential — a fuel pressure drop under boost is the warning before a lean condition develops.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0737\/9029\/2257\/products\/3b83bc43da92b2e1ad7d0de17d7cf780_50a2d51c-6c23-4708-90bc-b42af71dc2c1.jpg?v=1697913871\" alt=\"COBB Tuning Fuel Pressure Regulator to Fuel Rail Kit - 2008-2021 Subaru STI\" style=\"width:100%;max-width:100%;margin:20px 0;border-radius:4px;\"\u003e\n\n\u003ch4\u003e\u003cstrong\u003eProtect the Engine — Know Your Fuel Pressure\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe OEM fueling system on the GR\/VA STI is adequate for stock power levels, but as boost and power increase, fuel system limitations show up in data before they show up as engine damage. The Cobb CAN Fuel Pressure Kit gives the Accessport V3 the sensor data it needs to display and log actual fuel pressure. A tuner can see exactly what the fuel system is doing under load — and catch a problem before it becomes expensive.\u003c\/p\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0737\/9029\/2257\/products\/518a4fa13540f68bdd6b62fce5d4aed6_f233e1df-d71f-401e-a50f-2fd2c057e0eb.jpg?v=1697913871\" alt=\"COBB Tuning Fuel Pressure Regulator to Fuel Rail Kit - 2008-2021 Subaru STI\" style=\"float:right;max-width:47%;margin:0 0 16px 16px;border-radius:4px;\"\u003e\n\n\u003ch4\u003e\u003cstrong\u003ePlug-In CAN Connection — No ECU Wiring Required\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Cobb CAN Fuel Pressure kit connects to the vehicle's existing CAN bus through a simple plug-in harness — no splicing into the ECU, no custom wiring. The Accessport V3 is required to use this kit, as it's the device that reads the CAN data and displays or acts on it. Installation is straightforward and reversible.\u003c\/p\u003e\n\n\u003cdiv style=\"clear:both\"\u003e\u003c\/div\u003e\n\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0737\/9029\/2257\/products\/52874541e2b0186bc9d584ac9bf1ea1b_5a20eebf-5405-4c9c-88ec-7e4acba95dad.jpg?v=1697913871\" alt=\"COBB Tuning Fuel Pressure Regulator to Fuel Rail Kit - 2008-2021 Subaru STI\" style=\"float:left;max-width:47%;margin:0 16px 16px 0;border-radius:4px;\"\u003e\n\n\u003ch4\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePlatform: 2008-2021 Subaru WRX STI\u003c\/li\u003e\n  \u003cli\u003ePlug-in CAN bus connection — no ECU wiring or splicing required\u003c\/li\u003e\n  \u003cli\u003eRequires Cobb Accessport V3 for sensor data display and tune adjustment\u003c\/li\u003e\n  \u003cli\u003eReal-time fuel pressure monitoring — displayed and logged on Accessport V3\u003c\/li\u003e\n  \n  \u003cli\u003eFully reversible installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"clear:both\"\u003e\u003c\/div\u003e\n\n\u003ch4\u003e\u003cstrong\u003eFitment Notes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003ePlatform: 2008-2021 Subaru WRX STI\u003c\/li\u003e\n  \u003cli\u003eRequires Cobb Accessport V3 — does not work without Accessport\u003c\/li\u003e\n  \u003cli\u003eConfirm MT vs CVT compatibility by SKU before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eStraight From Subispeed\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Cobb CAN system is the right approach to fuel monitoring on the GR\/VA STI — plug-in installation, Accessport integration, and automatic tune adjustment without a separate fuel management system or wiring harness. For any build running elevated boost, fuel pressure monitoring is the kind of data that pays for itself the first time it catches a problem before the engine does.\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCobb CAN Fuel Pressure Kit — 2008-2021 Subaru WRX STI\u003c\/li\u003e\n  \u003cli\u003eCAN bus harness and sensor\u003c\/li\u003e\n  \u003cli\u003eAll mounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cstrong\u003eAbout Cobb Tuning\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eCobb Tuning has been developing performance parts and tuning solutions for Subaru vehicles since 1999. Based in Austin, Texas, Cobb built their reputation on the Accessport — the most widely used Subaru ECU tuning device on the market — and expanded that into a full ecosystem of intake, exhaust, drivetrain, and engine bay accessories engineered specifically for the platforms they support. Every Cobb product is developed in-house and validated on their own test vehicles before it reaches customers. Subispeed carries the full Cobb catalog because their engineering standards and platform-specific development process consistently produce parts that work exactly as advertised.\u003c\/p\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2008-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e2015-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWrx Sti\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"COBB","offers":[{"title":"Default Title","offer_id":45712859922518,"sku":"COBB315250","price":114.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/0411\/1190\/files\/6s67bsh0xef8_ea308a7a-b172-40bc-a73e-fbe088fcde41.jpg?v=1788785459","url":"https:\/\/truegearus.com\/products\/cobb-tuning-fuel-pressure-regulator-to-fuel-rail-kit-2008-2021-subaru-sti-qwpmbv","provider":"TrueGear","version":"1.0","type":"link"}