{"product_id":"cobb-15-18-subaru-wrx-14-18-fxt-lf-by-pass-valve","title":"Cobb 15-18 Subaru WRX \/ 14-18 FXT LF By-Pass Valve","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eB745670\u003c\/span\u003e   |   \u003cstrong\u003eUPC:\u003c\/strong\u003e 700424680221\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eCobb 15-18 Subaru WRX \/ 14-18 FXT LF By-Pass Valve\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Cobb LF Bypass Valve serves as a direct replacement for the factory plastic diverter valve on 2015-2018 Subaru WRX and 2014-2018 Forester XT models. Its low-force spring design ensures quick boost recovery and stock-like throttle response while handling up to 34 PSI. This upgrade delivers reliable compressor surge protection for daily driving and track use.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Machined Aluminum Housing:\u003c\/strong\u003e Provides lightweight strength and corrosion resistance for long-term reliability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReinforced Diaphragm:\u003c\/strong\u003e Built to withstand high boost pressures up to 34 PSI without failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Force Spring:\u003c\/strong\u003e Delivers fast boost onset matching OEM feel on stock or low-boost setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Bolt-On Fit:\u003c\/strong\u003e Installs in the OEM location with no cutting or modifications needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Hardware Kit:\u003c\/strong\u003e Includes O-rings, fittings, and fasteners for plug-and-play assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for stock turbo configurations or mild modifications up to 25 PSI.\u003c\/li\u003e\n\u003cli\u003eOperate quietly compared to atmospheric vent styles.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003eRemove OEM valve from turbo outlet pipe and throttle body hose in 30-45 minutes.\u003c\/li\u003e\n\u003cli\u003eCompatible with factory brackets and vacuum lines torque to spec.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eThis Part Fits\u003c\/h4\u003e\n\u003ctable border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eSubmodel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003eBase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003ePremium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015-2018\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003ctd\u003eLimited\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2014-2018\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eForester\u003c\/td\u003e\n\u003ctd\u003e2.0XT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhy Choose Cobb?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOver 20 years developing Subaru-specific tuning components.\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA with precision engineering.\u003c\/li\u003e\n\u003cli\u003eSupported by extensive dyno testing and customer resources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit 2019-2021 WRX models?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, Cobb confirms compatibility through 2021 VA-chassis WRX due to identical OEM valve design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What materials are used in construction?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Billet CNC aluminum body with a durable reinforced rubber diaphragm and stainless hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Does installation require ECU tuning?\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No tuning needed it's a mechanical drop-in replacement for the OEM valve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e UPS Ground or USPS Priority\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailability:\u003c\/strong\u003e In stock - ships same or next business day\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Compact box 6\" x 4\" x 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.31 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"COBB","offers":[{"title":"Default Title","offer_id":43917271498831,"sku":"COBB745670","price":405.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/cobb-15-18-subaru-wrx-14-18-fxt-lf-by-pass-valve-cobb-5.jpg?v=1765995677","url":"https:\/\/www.blackopsautoworks.com\/products\/cobb-15-18-subaru-wrx-14-18-fxt-lf-by-pass-valve","provider":"Black Ops Auto Works","version":"1.0","type":"link"}