{"product_id":"hks-mitsubishi-evo-x-4b11t-mr-1mm-stopper-head-gasket-87-5mm-bore-9-1-cr","title":"HKS Mitsubishi EVO X 4B11T MR 1mm Stopper Head Gasket (87.5mm Bore\/9.1 CR)","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e23001-AM006\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 4957266643044\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eHKS Metal Head Gasket Mitsubishi Lancer Evolution X 4B11T 2008-2015 - 1mm Thickness 87.5mm Bore 9.1 CR\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eHKS 23001-AM006 is a multi-layer metal head gasket engineered for Mitsubishi Lancer Evolution X with 4B11T engine. It fits 2008-2015 models on CZ4A chassis including GSR MR and MR Touring variants. The opposed bead stopper design maintains seal integrity under high boost and heat for reliable performance in tuned engines.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.0mm Thickness:\u003c\/strong\u003e Delivers exact compression control for 9.1 ratio in performance setups\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e87.5mm Bore Diameter:\u003c\/strong\u003e Supports larger pistons and stroker kits without clearance issues\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9.1 Compression Ratio:\u003c\/strong\u003e Balances boost compatibility with street and track demands\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Layer Metal Construction:\u003c\/strong\u003e Resists warping and blowout for consistent cylinder pressure\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOpposed Bead Stopper Design:\u003c\/strong\u003e Enhances durability over grommet styles for long-term high-pressure sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm 4B11T engine code and CZ4A chassis before installation\u003c\/li\u003e\n\u003cli\u003eSurface cylinder head and block to OEM flatness specs for best results\u003c\/li\u003e\n\u003cli\u003ePackaged flat in protective sleeve to prevent shipping 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\u003eTorque head bolts in sequence to HKS or OEM specifications\u003c\/li\u003e\n\u003cli\u003eCompatible with factory head studs. no extra hardware required\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 X\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 X\u003c\/td\u003e\n\u003ctd\u003eMR\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 X\u003c\/td\u003e\n\u003ctd\u003eMR Touring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose HKS?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDecades of motorsport development for Evo platforms\u003c\/li\u003e\n\u003cli\u003eMulti-layer designs proven in high-boost competition\u003c\/li\u003e\n\u003cli\u003ePrecision tolerances match JDM engineering standards\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 this fit non-USDM Evo X models?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Designed for CZ4A chassis with 4B11T turbo engine. verify chassis and engine code for JDM or other imports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material resists high boost best?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Multi-layer stainless steel with opposed bead stoppers handles extreme pressures and temperatures\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Is special head work needed?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Resurface head and block flat. use MLS-compatible sealant on bolts if reusing\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 Flat protective envelope 10in x 8in x 0.25in\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.3 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HKS","offers":[{"title":"Default Title","offer_id":43516525051983,"sku":"HKS23001-AM006","price":280.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/hks-mitsubishi-evo-x-4b11t-mr-1mm-stopper-head-gasket-87_5mm-bore9_1-cr-hks.jpg?v=1768435929","url":"https:\/\/www.blackopsautoworks.com\/products\/hks-mitsubishi-evo-x-4b11t-mr-1mm-stopper-head-gasket-87-5mm-bore-9-1-cr","provider":"Black Ops Auto Works","version":"1.0","type":"link"}