{"product_id":"gsc-p-d-subaru-ej-series-ej205-ej207-ej257-33mm-head-1mm-chrome-polished-exhaust-valve-set-of-8","title":"GSC P-D Subaru EJ Series EJ205\/EJ207\/EJ257 33mm Head (+1mm) Chrome Polished Exhaust Valve - Set of 8","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e2013-8\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e GSC2013-8\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC P-D Subaru EJ Series EJ205\/EJ207\/EJ257 33mm Head (+1mm) Chrome Polished Exhaust Valve - Set of 8 for 2002-2021 Impreza WRX STI\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eGSC Power-Division exhaust valves feature precise engineering for Subaru EJ205 EJ207 EJ257 engines in 2002-2021 Impreza WRX STI models. The 33mm head diameter (+1mm over stock) enhances exhaust flow for faster turbo spool and increased power output while the chrome polished finish resists wear. This set of 8 forged valves provides reliable performance in high-boost setups up to 40psi.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e33mm Head Diameter (+1mm):\u003c\/strong\u003e Larger size over stock improves exhaust evacuation for quicker turbo response and higher horsepower in WRX STI builds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Forged 21-4N Stainless Steel:\u003c\/strong\u003e Extreme heat resistance and strength handles high RPM and boost levels without failure in turbo engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-Stage Stem (6.98mm upper \/ 5.95mm lower):\u003c\/strong\u003e Enhanced sealing rigidity reduces flex and guides wear during aggressive driving and track use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e113.95mm Overall Length:\u003c\/strong\u003e Exact OEM-spec length allows drop-in installation without head machining on EJ205 EJ207 EJ257\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Polished Top and Swirl Polished Under Head:\u003c\/strong\u003e Minimizes friction and guide wear to extend valve life in turbocharged Subaru applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eExhaust valves only set of 8 intake valves sold separately under GSC part 2004-8\u003c\/li\u003e\n\u003cli\u003eHeat treated for maximum durability in turbo applications up to 40psi boost\u003c\/li\u003e\n\u003cli\u003eShips in protective foam-lined box to prevent damage\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\u003eVerify valve-to-piston clearance with clay method on high compression builds\u003c\/li\u003e\n\u003cli\u003eCompatible with stock heads GSC valve springs and multi-angle valve job\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\u003e2004-2007\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\u003e2008-2014\u003c\/td\u003e\n\u003ctd\u003eSubaru\u003c\/td\u003e\n\u003ctd\u003eImpreza WRX\u003c\/td\u003e\n\u003ctd\u003eSTI\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\u003c\/td\u003e\n\u003ctd\u003eSTI\u003c\/td\u003e\n\u003c\/tr\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 TR\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 WRX STI race cars and drag builds worldwide\u003c\/li\u003e\n\u003cli\u003eMachined to micron tolerances in the USA for perfect fit\u003c\/li\u003e\n\u003cli\u003eEngineered specifically for Subaru EJ turbo valvetrain demands\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 2006 WRX EJ255 turbo engine\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes direct fit for all EJ205 EJ207 EJ257 exhaust ports in 2002-2021 USDM WRX STI models\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What finish and material details\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e One-piece 21-4N stainless steel with chrome polish on top swirl polish under head and heat treatment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What warranty and install tips\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty against manufacturing defects pair with GSC titanium retainers for best results professional valve seat cut advised\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 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 Foam-lined cardboard box 12 x 8 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 1 lb\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":43805341089871,"sku":"GSC2013-8","price":167.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/gsc-p-d-subaru-ej-series-ej205ej207ej257-33mm-head-1mm-chrome-polished-exhaust-valve-set-of-8-gsc-power-division.jpg?v=1767419548","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-subaru-ej-series-ej205-ej207-ej257-33mm-head-1mm-chrome-polished-exhaust-valve-set-of-8","provider":"Black Ops Auto Works","version":"1.0","type":"link"}