{"product_id":"supertech-2007-subaru-ej25-101-3mm-dia-1-2mm-0-047in-thick-cooper-ring-head-gasket-one-side","title":"Supertech 2007+ Subaru EJ25 101.3mm Dia 1.2mm (0.047in) Thick Cooper Ring Head Gasket (One Side)","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: HG-SUEJ25-101.3-1.2T \/ \u003cstrong\u003eUPC\u003c\/strong\u003e: 1037721243668\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eSupertech Copper Ring Head Gasket for 2007+ Subaru EJ25 Engines – 101.3mm Bore, 1.2mm Thick\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eThe Supertech copper ring head gasket, engineered specifically for 2007 and newer Subaru EJ25 engines. This single-side gasket delivers reliable compression retention and leak prevention in demanding turbocharged setups, making it the direct fit solution for enthusiasts building or maintaining high-output Subaru powertrains. With its 101.3mm bore diameter and precise 1.2mm (0.047-inch) thickness, it supports stock to modified configurations where consistent cylinder pressure is essential for peak reliability and power delivery.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eCompared to multi-layer steel (MLS) alternatives, this copper ring design provides greater conformability to minor surface irregularities on aluminum heads and blocks, ensuring a tighter seal under extreme heat cycles and boost levels up to 30 psi. It outperforms basic OEM replacements by resisting fatigue and blowout in repeated track or rally use, while maintaining even load distribution across the head surface for smoother operation and reduced risk of hot spots. For Subaru owners facing common EJ25 head gasket challenges, this component stands out as the practical, long-lasting option that keeps your engine running strong without frequent teardowns.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePrecise Vehicle Fitment\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMake\u003c\/b\u003e: Subaru\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eEngine\u003c\/b\u003e: EJ25 (2.5L DOHC turbocharged)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eYears\u003c\/b\u003e: 2007 and later\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eModels\u003c\/b\u003e:\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eWRX (2008–2014, GD\/GG chassis)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eWRX STI (2008–2021, GR\/GV chassis)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eLegacy GT (2005–2012, BL\/BP chassis 2007+ compatibility confirmed)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eOutback XT (2005–2009, BL\/BP chassis 2007+ compatibility confirmed)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eForester XT (2008–2010, SH chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eNotes\u003c\/b\u003e: Direct replacement for turbo EJ25 variants verify bore size for stroker or decked block builds. Not compatible with SOHC EJ25 non-turbo engines.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eProduct Specifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Number\u003c\/b\u003e: HG-SUEJ25-101.3-1.2T\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eUPC\u003c\/b\u003e: 1037721243668\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eBore Diameter\u003c\/b\u003e: 101.3mm (precisely matched to EJ25 cylinder sizing)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eThickness\u003c\/b\u003e: 1.2mm (0.047 inches) ideal for maintaining stock compression ratios in boosted applications\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eMaterial\u003c\/b\u003e: High-purity copper ring with reinforced fire ring for superior heat dissipation and pressure containment\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eConstruction\u003c\/b\u003e: Single-layer copper with integrated sealing beads; designed for ARP or OEM head studs\/bolts\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePerformance Rating\u003c\/b\u003e: Handles up to 1,000+ horsepower setups with proper head\/block prep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in Your Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e(1) Supertech copper ring head gasket (one side only order two for full engine coverage)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eNo additional hardware, seals, or fluids included (head bolts\/studs sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePackaging and Shipping Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Weight\u003c\/b\u003e: 1.5 lbs (0.68 kg)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eBox Dimensions\u003c\/b\u003e: 12 inches (width) x 12 inches (length) x 2 inches (height)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Weight\u003c\/b\u003e: Approximately 1.8 lbs (includes packaging)\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eUPC for Tracking\u003c\/b\u003e: 1037721243668\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eInstall this gasket with cleaned, flat-milled head and block surfaces for best results torque to Subaru specs (typically 22 ft-lbs initial, then 89 ft-lbs final in stages). Backed by Supertech's reputation for precision manufacturing, the HG-SUEJ25-101.3-1.2T ensures your Subaru EJ25 stays sealed and responsive, whether on the street, strip, or stage. Order now for fast delivery and keep your build ahead of the curve.\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"Default Title","offer_id":43726586249295,"sku":"SPTHG-SUEJ25-101.3-1.2T","price":115.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_HG-SUEJ25-101.3-1.2T_UPC_1037721243668.png?v=1761164986","url":"https:\/\/www.blackopsautoworks.com\/products\/supertech-2007-subaru-ej25-101-3mm-dia-1-2mm-0-047in-thick-cooper-ring-head-gasket-one-side","provider":"Black Ops Auto Works","version":"1.0","type":"link"}