{"product_id":"gsc-p-d-subaru-ej205-ej207-ej257-std-head-chrome-polished-exhaust-valve-set-of-50","title":"GSC P-D Subaru EJ205\/EJ207\/EJ257 STD Head Chrome Polished Exhaust Valve - Set of 50","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003eB2011-50\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC P-D Subaru EJ205\/EJ207\/EJ257 STD Head Chrome Polished Exhaust Valve - Set of 50 (02-21 WRX\/STI)\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGSC Power-Division chrome polished exhaust valves provide direct replacement for Subaru EJ205 EJ207 and EJ257 standard head engines found in Impreza WRX and STI models from 2002 to 2021. This set of 50 valves supports high-volume rebuilds or race shop needs with precise sizing for OEM heads. Chrome stems cut friction while forged construction handles turbocharged heat and RPM.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Forged Design:\u003c\/strong\u003e Built from 21-4N stainless steel for strength that resists fatigue in boosted applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Polished Stems:\u003c\/strong\u003e 7mm diameter reduces guide wear and friction for longer life under high heat\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwirl Polished Heads:\u003c\/strong\u003e 36.5mm diameter enhances exhaust flow velocity without altering port design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBead Blasted Finish:\u003c\/strong\u003e Promotes even seating and sealing on stock valve seats\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Sizing:\u003c\/strong\u003e Matches OEM specs at 97.75mm overall length for drop-in compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSold as set of 50 for bulk engine builds or team use\u003c\/li\u003e\n\u003cli\u003eInspect valve guides before install to ensure proper clearance\u003c\/li\u003e\n\u003cli\u003eStandard ground shipping with protective foam insert packaging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProfessional installation recommended.\u003c\/li\u003e\n\u003cli\u003ePerform three-angle valve job for optimal sealing and flow\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM retainers springs or GSC upgrades\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e2002-2007\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2021\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX STI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2007\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza\u003c\/td\u003e\n\u003ctd\u003eWRX STI JDM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2004-2008\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eForester\u003c\/td\u003e\n\u003ctd\u003eXT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005-2009\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eLegacy\u003c\/td\u003e\n\u003ctd\u003eGT\u003c\/td\u003e\n\u003c\/tr\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\u003eWRX Hatchback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose GSC Power-Division?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eProven in SCCA time attack and drag Subaru race cars\u003c\/li\u003e\n\u003cli\u003eMachined to micron tolerances for repeatable performance\u003c\/li\u003e\n\u003cli\u003eBacked by real-world testing on 400+ whp builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\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 Do these fit 2008-2021 STI models?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes EJ257 STD head from 2004-2021 STI including hatchback and sedan trims\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and stem treatment?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Forged 21-4N stainless steel valves with chrome polished stems for heat dissipation and low friction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty applies?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Limited lifetime against manufacturing defects when installed by certified shop\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eShipping \u0026amp; Handling\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod:\u003c\/strong\u003e Standard ground\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 Protective box 12x8x6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 6 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":39735901028431,"sku":"GSCB2011-50","price":1014.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/Screenshot2024-06-04at1.44.36PM_689684b4-bcfa-46ef-96fe-c461b2d221d3.png?v=1717523113","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-subaru-ej205-ej207-ej257-std-head-chrome-polished-exhaust-valve-set-of-50","provider":"Black Ops Auto Works","version":"1.0","type":"link"}