{"product_id":"radium-engineering-02-14-subaru-wrx-sti-top-feed-fuel-rail-upgrade-factory-top-feed-motors-only","title":"Radium Engineering 02-14 Subaru WRX\/STI Top Feed Fuel Rail Upgrade (Factory Top Feed Motors Only)","description":"\u003cp\u003eRadium fuel rails for EJ engines come in two styles. The top feed conversion rails fit OEM side feed manifolds and convert from side feed injectors to universal top feed injectors. The top feed upgrade rail kits install onto manifolds that are factory equipped with top feed injectors and are simply an upgrade of the rail, still accepting the OEM fuel injector.\u003c\/p\u003e\n\u003cp\u003eBefore ordering, make sure that you've matched your intake manifold by model to the correct fuel rail part number and closely follow the fuel injector compatibility information of that fuel rail below to ensure that you order the correct parts.\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":45255261814863,"sku":null,"price":199.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/7826\/2607\/files\/Screenshot2026-05-17222154.png?v=1779070936","url":"https:\/\/greezco.com\/products\/radium-engineering-02-14-subaru-wrx-sti-top-feed-fuel-rail-upgrade-factory-top-feed-motors-only","provider":"Greez Co.","version":"1.0","type":"link"}