{"product_id":"radium-fuel-pressure-regulator-kit-for-subaru-sti-08-19","title":"Radium Fuel Pressure Regulator FPR Kit for 2008+ STi (20-0965)","description":"Radium Engineering fuel pressure regulator kit for 2008+ STi replaces the stock regulator and damper assembly (see photos) with this clean, easily adjustable black aluminum kit.\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eVehicle Fitment:\u003c\/span\u003e\u003cbr\u003e2008-2021 Subaru STi\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eInstall Notes:\u003c\/span\u003e\u003cbr\u003e• \u003ca style=\"color: #afafaf; text-decoration: underline;\" href=\"http:\/\/data.radiumauto.com\/PublicDocs\/19-0337.pdf\" target=\"blank\"\u003e PDF Install Instructions\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ffff00;\"\u003eRecommended for Install:\u003c\/span\u003e\u003cbr\u003e\u003ca href=\"https:\/\/stmtuned.com\/products\/radium-fuel-pressure-gauge-0-100psi-with-8an-orb-90-adapter-20-0386\" style=\"color: #afafaf; text-decoration: underline;\"\u003eFuel Pressure Gauge Kit (20-0386)\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff2a00;\"\u003eMore from Radium:\u003c\/span\u003e\u003cbr\u003eThe factory STi fuel line routing uses a quasi dead-end system that circulates fuel through the regulator, bypassing the engine. Fuel is only routed to the engine when there is demand.\u003cbr\u003e\u003cbr\u003eThe Radium FPR kit re-routes fuel to cycle through the fuel rails before reaching the regulator and returning to the tank. This is the preferred fuel line routing by Subaru tuners trying to address stumbling issues. The kit installs in the same location as the OEM fuel pressure regulator. Also included are vacuum hose and fittings to re-route the vacuum reference line from the #4 cylinder runner to the intake manifold plenum for a more stable vacuum signal. The optional \u003ca style=\"color: #afafaf; text-decoration: underline;\" href=\"https:\/\/stmtuned.com\/products\/radium-fuel-pressure-gauge-0-100psi-with-8an-orb-90-adapter-20-0386\"\u003eFuel Pressure Gauge Kit (20-0386)\u003c\/a\u003e can be installed into the unused 8AN ORB port on the regulator.\u003cbr\u003e\u003cbr\u003eThe regulator features the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. \u003cbr\u003e\u003cbr\u003eTo aid in adjusting pressure, there are incremental detents that provide haptic feedback to the user. Every detent permits 1psi (+\/-0.5psi) of adjustment depending on current fuel pressure. A newly designed single stainless steel return orifice generates laminar flow that enhances stability control.\u003cbr\u003e\u003cbr\u003eThe regulator also features a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.\u003cbr\u003e\u003cbr\u003eThere are 4 interchangeable 10-32 threaded vacuum port fittings provided to cover all scenarios. \u003cbr\u003e\n\u003col\u003e\n\u003cli\u003eBarbed Fitting: A black zinc-plated 3\/16\" (5mm) barb machined from high strength steel that is compatible with the following vacuum hoses: 5\/32\" (4mm), 3\/16\" (5mm), and 7\/32\" (6mm).\u003c\/li\u003e\n\u003cli\u003e3AN Male Fitting: A black zinc-plated adapter machined from high strength steel that is compatible with 3AN hose ends.\u003c\/li\u003e\n\u003cli\u003ePush-To-Connect: A nickel-plated brass fitting with Buna-N O-rings that is compatible with hard plastic 1\/4\" OD tubing.\u003c\/li\u003e\n\u003cli\u003eVacuum Plug: A black oxide stainless steel screw that is used to maintain a constant (non dynamic) fuel pressure.\u003c\/li\u003e\n\u003c\/ol\u003e\nThis FPR kit is suitable with all gasoline types including unleaded, leaded, oxygenated, and pre-mixes. Furthermore, it is compatible with alcohol blends of fuel including methanol, ethanol, and E85.\u003cbr\u003e\u003cbr\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr bgcolor=\"2d2d2d\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eCurrent Part Number:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e20-0965\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr bgcolor=\"404040\"\u003e\n\u003ctd style=\"color: #ffffff;\"\u003eReplaces these older versions:\u003c\/td\u003e\n\u003ctd style=\"color: #ffffff;\"\u003e20-0265-00 (Black), 20-0265-01 (Green)\u003cbr\u003eDiscontinued November 2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ca style=\"color: #afafaf;\" href=\"https:\/\/stmtuned.com\/collections\/radium-products\"\u003e\u003cbr\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: .8em;\"\u003e See more Radium Products\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/a\u003e","brand":"Radium","offers":[{"title":"Default Title","offer_id":50563445227862,"sku":"RAD-20-0965","price":288.68,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0817\/9531\/8102\/files\/20-0965-radium-fpr-kit-subaru-sti-2008-2021-1.jpg?v=1749211901","url":"https:\/\/www.speed-addicts.com\/en\/products\/radium-fuel-pressure-regulator-kit-for-subaru-sti-08-19","provider":"Speed Addicts","version":"1.0","type":"link"}