{"product_id":"borgwarner-turbine-housing-efr-b2-74mm-1-05-t4-twin-scroll","title":"BorgWarner Turbine Housing EFR B2 74mm 1.05 T4 Twin Scroll","description":"\u003cp\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e \u003cspan itemprop=\"sku\"\u003e12741019002\u003c\/span\u003e | \u003cstrong\u003eUPC:\u003c\/strong\u003e 840232711349\u003c\/p\u003e\n\n\u003ch4\u003e\u003cstrong\u003eBorgWarner Turbine Housing EFR B2 74mm 1.05 T4 Twin Scroll\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eBorgWarner EFR B2 turbine housing pairs with 74mm turbine wheels in EFR 7670 turbochargers for custom performance setups on inline-4 and inline-6 engines. Features T4 twin scroll inlet for fast spool and reduced lag paired with 1.05 A\/R for strong mid-range torque and top-end power up to 850 hp. Ideal for drag racing street cars and track builds needing quick response and high exhaust flow.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwin Scroll T4 Inlet:\u003c\/strong\u003e Divided pulses improve turbine efficiency cuts backpressure and accelerates spool by 300-500 RPM versus single scroll\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.05 A\/R Ratio:\u003c\/strong\u003e Balances low-end response with high RPM flow supports 450-850 hp on 2.0-3.0L engines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNiResist Material:\u003c\/strong\u003e Nickel-iron alloy endures 1050°C exhaust gas temperatures resists cracking for long-term reliability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-inch V-Band Outlet:\u003c\/strong\u003e Clamp-style connection simplifies swaps and maintenance over welded flanges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEFR 7670 Compatible:\u003c\/strong\u003e Precision cast for bolt-on fit to B2 center sections ensures zero leaks and peak boost control\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eProduct Notes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eMatches EFR 7670 compressor and center housing part numbers 179258 179286 or equivalents\u003c\/li\u003e\n\u003cli\u003eVerify manifold T4 divided flange matches 2.5-inch outlets before ordering\u003c\/li\u003e\n\u003cli\u003eStandard ground shipping applies free over $99 on most orders\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 inlet studs to 28 Nm and V-band clamp to 15 Nm using anti-seize\u003c\/li\u003e\n\u003cli\u003eRequires T4 twin scroll manifold and 4-inch V-band clamp sold separately\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\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\u003e2003-2006\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer\u003c\/td\u003e\n\u003ctd\u003eEvolution VIII MR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2007-2015\u003c\/td\u003e\n\u003ctd\u003eMitsubishi\u003c\/td\u003e\n\u003ctd\u003eLancer\u003c\/td\u003e\n\u003ctd\u003eEvolution X GSR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1993-1998\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eSupra\u003c\/td\u003e\n\u003ctd\u003eTwin Turbo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1989-2002\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline\u003c\/td\u003e\n\u003ctd\u003eGT-R\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2003-2009\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003e350Z\u003c\/td\u003e\n\u003ctd\u003eTrack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eWhy Choose BorgWarner?\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eDecades of OEM turbo leadership in rally and production cars\u003c\/li\u003e\n\u003cli\u003eInvestment cast housings deliver consistent flow and heat management\u003c\/li\u003e\n\u003cli\u003eBacked by rigorous dyno testing for real-world power gains\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 housing fit my EFR 7670 turbocharger?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Yes this is the OEM replacement turbine housing for all BorgWarner EFR 7670 B2 frame turbos with 74mm wheels\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e What material handles the heat best?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e NiResist iron alloy provides superior thermal stability and resists expansion under 1000+°C EGTs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need special tools for install?\u003cbr\u003e\n      \u003cstrong\u003eA:\u003c\/strong\u003e Standard torque wrench and V-band pliers suffice uses common T4 bolt pattern professional tuning required post-install\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 Original BorgWarner box 14 x 14 x 14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 11.5 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BorgWarner","offers":[{"title":"Default Title","offer_id":40471816437839,"sku":"BWA12741019002","price":842.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/borgwarner-turbine-housing-efr-b2-74mm-1_05-t4-twin-scroll-borgwarner.png?v=1770255096","url":"https:\/\/www.blackopsautoworks.com\/products\/borgwarner-turbine-housing-efr-b2-74mm-1-05-t4-twin-scroll","provider":"Black Ops Auto Works","version":"1.0","type":"link"}