{"product_id":"csf-auxiliary-radiator-bmw-f8x-m3-m4-m2-8258","title":"CSF Auxiliary Radiator — 2015-2021 BMW F8X M3, M4 \u0026 M2 Competition | S55, 2-Row 42mm | 8258","description":"\u003cp\u003eThe CSF 8258 is a high-performance auxiliary radiator for the 2015-2021 BMW F80 M3, F82 and F83 M4 (including M4 CS and GTS), and F87 M2 Competition and M2 CS with the S55 twin-turbo 3.0L inline-6. It uses a 2-row 42mm core with CSF's B-Tube Technology and track-spec multi-louvered fins, with about 10 percent more tank volume and 6.4 percent more core than the OEM unit. It is a drop-in fit with a satin black finish, OEM quick-connect fittings, and a detachable rock guard. It is sold individually and works on either the left or right side; every application requires two auxiliary radiators.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eType: high-performance auxiliary radiator\u003c\/li\u003e\n\u003cli\u003eCore: 2-row, 42mm, B-Tube Technology\u003c\/li\u003e\n\u003cli\u003eFins: track-spec, multi-louvered\u003c\/li\u003e\n\u003cli\u003eVolume: about 10 percent more tank volume, 6.4 percent more core than OEM\u003c\/li\u003e\n\u003cli\u003eEngine: S55 twin-turbo 3.0L inline-6\u003c\/li\u003e\n\u003cli\u003eFits either left or right side; sold individually, two required per car\u003c\/li\u003e\n\u003cli\u003eIncluded: detachable rock guard\u003c\/li\u003e\n\u003cli\u003eFinish: satin black\u003c\/li\u003e\n\u003cli\u003ePart number: 8258\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eVehicle Applications\u003c\/h3\u003e\u003cp\u003eDirect fit on the following (S55 twin-turbo):\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2015 BMW M3 (F80)\u003c\/li\u003e\n\u003cli\u003e2016 BMW M3 (F80)\u003c\/li\u003e\n\u003cli\u003e2017 BMW M3 (F80)\u003c\/li\u003e\n\u003cli\u003e2018 BMW M3 (F80)\u003c\/li\u003e\n\u003cli\u003e2015 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2016 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2017 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2018 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2019 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2020 BMW M4 (F82\/F83)\u003c\/li\u003e\n\u003cli\u003e2019 BMW M2 (F87)\u003c\/li\u003e\n\u003cli\u003e2020 BMW M2 (F87)\u003c\/li\u003e\n\u003cli\u003e2021 BMW M2 (F87)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch5\u003eWhat vehicles does the CSF 8258 fit?\u003c\/h5\u003e\u003cp\u003eThe 2015-2021 BMW F80 M3, F82\/F83 M4 (incl. CS and GTS), and F87 M2 Competition and M2 CS with the S55 engine.\u003c\/p\u003e\u003ch5\u003eHow many are needed per car?\u003c\/h5\u003e\u003cp\u003eTwo auxiliary radiators are required per vehicle. It is sold individually.\u003c\/p\u003e\u003ch5\u003eDoes it fit the left or right side?\u003c\/h5\u003e\u003cp\u003eIt is a modular design that works on either the left or right side.\u003c\/p\u003e\u003ch5\u003eHow many rows is the core?\u003c\/h5\u003e\u003cp\u003eA 2-row 42mm core with CSF's B-Tube Technology.\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What vehicles does the CSF 8258 fit?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The 2015-2021 BMW F80 M3, F82\/F83 M4 (incl. CS and GTS), and F87 M2 Competition and M2 CS with the S55 engine.\"}}, {\"@type\": \"Question\", \"name\": \"How many are needed per car?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Two auxiliary radiators are required per vehicle. It is sold individually.\"}}, {\"@type\": \"Question\", \"name\": \"Does it fit the left or right side?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"It is a modular design that works on either the left or right side.\"}}, {\"@type\": \"Question\", \"name\": \"How many rows is the core?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 2-row 42mm core with CSF's B-Tube Technology.\"}}]}\u003c\/script\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":42636394922032,"sku":"CSF8258","price":469.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0586\/9548\/3440\/files\/38a9d3ea132e88d8de195f0e33e9c28bL.jpg?v=1765305352","url":"https:\/\/berryperformancesales.com\/products\/csf-auxiliary-radiator-bmw-f8x-m3-m4-m2-8258","provider":"Berry Performance Sales","version":"1.0","type":"link"}