{"product_id":"isr-turbine-o2-housing-nissan-rb20-25-swapped-240sx","title":"ISR Turbine O2 Housing - Nissan RB20\/25 Swapped 240SX","description":"\u003cp\u003eThe ISR Performance Turbine O2 Housing is a turbo outlet \/ O2 housing for RB20DET and RB25DET engine swaps into the 1989-1998 Nissan 240SX (S13 and S14). 3 inch diameter outlet, double-welded inside and out to prevent cracking, with a brushed finish. Specifically designed to clear the LHD steering rack and bolt up to a SR20-style downpipe when running ISR swap mounts.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It Does\u003c\/h3\u003e\n\u003cp\u003eThe factory RB20DET and RB25DET turbo outlet is restrictive and routes the exhaust toward a JDM RHD chassis layout, not a US-market LHD S-chassis. This ISR turbine O2 housing replaces the factory unit with a 3 inch flow path designed around the LHD steering rack clearance issue that's the most common headache on US RB swaps, then transitions to a standard SR20-style downpipe so any 240SX SR20 downpipe and catback work downstream.\u003c\/p\u003e\n\n\u003cp\u003eBang-for-the-buck power gain on any RB-swapped S-chassis build, plus it cleans up the turbo-to-downpipe transition that's usually custom fabbed.\u003c\/p\u003e\n\n\u003ch3\u003eCritical Fitment Requirements\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis is built specifically for RB20\/25 swaps into a 240SX using ISR swap mounts.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRB20\/25 engine swap into US S-chassis (LHD)\u003c\/li\u003e\n\u003cli\u003eISR Performance RB swap mount kit required for guaranteed fit\u003c\/li\u003e\n\u003cli\u003eDesigned to use SR20-style downpipe downstream\u003c\/li\u003e\n\u003cli\u003eDesigned to clear the LHD steering rack\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRe-uses factory OEM turbine housing studs and nuts\u003c\/li\u003e\n\u003cli\u003eMay require slight clearancing of the bellhousing or flange due to the 3 inch diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e3 bolt flange thread pitch: M10 x 1.5\u003c\/li\u003e\n\u003cli\u003eBolt length: 1 3\/4 inch\u003c\/li\u003e\n\u003cli\u003eFinish: Brushed\u003c\/li\u003e\n\u003cli\u003eConstruction: Double welded (inside and outside) to prevent cracking\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1989-1998 Nissan 240SX (S13 \/ S14) with RB20DET or RB25DET swap on ISR mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1x ISR Performance RB20\/25 turbine O2 housing\u003c\/li\u003e\n\u003cli\u003e1x 3 inch 3-bolt gasket\u003c\/li\u003e\n\u003cli\u003e1x 6-bolt gasket\u003c\/li\u003e\n\u003cli\u003e3x Exhaust studs\u003c\/li\u003e\n\u003cli\u003e3x Nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRe-use OEM turbine housing studs and nuts.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e ISR Performance\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e IS-O2-RB25\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Turbine O2 Housing (Turbo Outlet)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eVehicle Fitment:\u003c\/strong\u003e 1989-1998 Nissan 240SX (S13\/S14) with RB20DET or RB25DET swap\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e RB20DET, RB25DET\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eDrivetrain Restriction:\u003c\/strong\u003e LHD chassis only (designed around US steering rack clearance)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eRequired Companion Part:\u003c\/strong\u003e ISR Performance RB swap mount kit\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eDownpipe Compatibility:\u003c\/strong\u003e SR20-style downpipe\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eOutlet Diameter:\u003c\/strong\u003e 3 inch\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eFlange Thread:\u003c\/strong\u003e M10 x 1.5 (3-bolt)\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eBolt Length:\u003c\/strong\u003e 1 3\/4 inch\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eConstruction:\u003c\/strong\u003e Double welded inside and outside\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Brushed\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eInstallation Note:\u003c\/strong\u003e Re-use OEM turbine housing studs \/ nuts; may require slight bellhousing or flange clearancing\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eSold:\u003c\/strong\u003e Housing with gaskets and exhaust hardware\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 4px;\"\u003e\u003cstrong\u003eLegality:\u003c\/strong\u003e Off-road and competition use only\u003c\/p\u003e","brand":"ISR Performance","offers":[{"title":"Default Title","offer_id":45957127700677,"sku":"IS-O2-RB25","price":302.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0767\/2718\/9701\/files\/IMG_6662__46914.1630073070.500.659.jpg?v=1773346692","url":"https:\/\/www.isrcompetition.com\/products\/isr-turbine-o2-housing-nissan-rb20-25-swapped-240sx","provider":"ISR Competition","version":"1.0","type":"link"}