{"product_id":"gsc-p-d-4b11t-23-8n-chrome-polished-exhaust-valve-29mm-head-std-set-8","title":"GSC P-D 4B11T 23-8N Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e2021-8\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eGSC Power-Division 2008-2015 Mitsubishi Lancer Evolution X 4B11T 23-8N Chrome Polished Exhaust Valve - 29mm Head (STD) - SET 8\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eReplace stock exhaust valves in your 2008-2015 Mitsubishi Lancer Evolution X 4B11T engine with this GSC Power-Division set of 8. Featuring 29mm standard head diameter and chrome polished stems these valves deliver higher exhaust flow and resist wear in turbocharged applications. Engineered for direct fit they support increased boost and RPM without failure.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChrome Polished Stems:\u003c\/strong\u003e Reduce friction against guides for longer life and consistent valve action\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSwirl Polished Heads:\u003c\/strong\u003e Improve exhaust gas evacuation and power output across RPM range\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-Piece Forged Design:\u003c\/strong\u003e Provide strength to handle high heat and stress in performance engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e29mm Head Diameter (STD):\u003c\/strong\u003e Maintain OEM dimensions with enhanced flow characteristics for bolt-in performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e102.95mm Length:\u003c\/strong\u003e Exact spec including 5.95mm stem and 9mm tip for perfect seating and operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eRecommended for use with upgraded valve springs like GSC 510mm or 25mm+ lift options\u003c\/li\u003e\n\u003cli\u003eInspect valve guides and seats before installation for optimal sealing\u003c\/li\u003e\n\u003cli\u003ePackaged securely to prevent damage during transit\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\u003eValve lash set to 0.23mm +\/- 0.03mm for exhaust side\u003c\/li\u003e\n\u003cli\u003eCompatible with OEM retainers seals and 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\u003e2008-2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eGSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2008-2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eMR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer Evolution\u003c\/td\u003e\n\u003ctd\u003eFinal Edition\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\u003eDeveloped for Evo competitors with proven track records in drag and road racing\u003c\/li\u003e\n\u003cli\u003eMade in USA with tight tolerances exceeding OEM standards\u003c\/li\u003e\n\u003cli\u003eBacked by lifetime warranty on manufacturing defects\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 Will these valves fit my 2010 Evo X GSR?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes direct replacement for all 2008-2015 Lancer Evolution X models with 4B11T 2.0L turbo engine including GSR MR and Final Edition\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material and finish do these valves have?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e One-piece forged steel construction with chrome polished stems for wear resistance and swirl polished heads for flow 30-32rc seat hardness\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What is the warranty and install process?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Lifetime warranty against defects. Requires cylinder head removal set lash after install and pair with matching springs for high boost\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 6 x 4 x 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.75 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"GSC Power Division","offers":[{"title":"Default Title","offer_id":40341598011471,"sku":"GSC2021-8","price":161.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/Screenshot2024-06-04at1.01.44PM.png?v=1717520533","url":"https:\/\/www.blackopsautoworks.com\/products\/gsc-p-d-4b11t-23-8n-chrome-polished-exhaust-valve-29mm-head-std-set-8","provider":"Black Ops Auto Works","version":"1.0","type":"link"}