{"product_id":"csf-bmw-s55-m2-competition-m3-f80-m4-f82-f83-auxiliary-cooling-radiator","title":"CSF BMW S55 M2 Competition \/ M3 (F80) \/ M4 (F82\/F83) Auxiliary Cooling Radiator","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eImportant - sold individually:\u003c\/strong\u003e every S55-equipped F8X requires \u003cstrong\u003etwo\u003c\/strong\u003e of these auxiliary radiators (left and right side). This listing is for a single unit: if you need both sides, add a quantity of 2 to your basket.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe factory auxiliary radiators on the S55 do a decent job in stock form, but once you start adding power and pushing the car hard, their limitations start to show - and with the F8X platform now approaching a decade old, even original units on unmodified cars often suffer from damaged or clogged fins that have quietly reduced cooling capacity over time. CSF's Auxiliary Cooling Radiator is the final piece of their popular F8X cooling suite, engineered as a genuine drop-in fit for easy installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe larger 2-row, 42mm core uses CSF's exclusive B-Tube technology to maximise airflow and heat dissipation, mounting in the factory location and using OEM quick-connect fittings - working alongside the rest of the cooling system to reduce overall temperatures. A modular design means the same part number fits either side of the car, a genuine advantage for track use: rather than stocking a separate left and right unit, one spare covers both positions. An integrated, bolt-on rock guard protects against the well-documented risk of OEM coolers being punctured by road debris and spilling fluid.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWorks with:\u003c\/strong\u003e OEM mounting location and quick-connect fittings - suitable for both manual and automatic transmission vehicles.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eWhy Choose This Auxiliary Radiator\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSame part fits both left and right sides\u003c\/strong\u003e - genuine cost and logistics saving, especially for spares\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLarger 2-row, 42mm core with B-Tube technology\u003c\/strong\u003e - real increase in cooling efficiency over the factory unit\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eIntegrated bolt-on rock guard\u003c\/strong\u003e - protects against road debris puncturing the core\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eTrue drop-in fit\u003c\/strong\u003e - mounts in the factory location using OEM quick-connect fittings\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eWorthwhile even on unmodified cars\u003c\/strong\u003e - factory units degrade with age regardless of power level\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003e\u003cstrong\u003eSuitable for manual and automatic vehicles\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 dir=\"ltr\" class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eCompatibility\u003c\/h2\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F80 M3 Saloon (2014-2018, S55)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F82 M4 Coupe (2014-2020, S55)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F83 M4 Convertible (2014-2020, S55)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBMW F87 M2 Competition\/CS (2018-2020, S55)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eSold individually\u003c\/strong\u003e — order quantity 2 for a full left and right set\u003c\/p\u003e","brand":"CSF","offers":[{"title":"Default Title","offer_id":54427148779853,"sku":"CSF-8258","price":635.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0980\/4808\/2253\/files\/csf-bmw-s55-m2-competition-m3-f80-m4-f82-f83-auxiliary-cooling-radiator.webp?v=1785406802","url":"https:\/\/i6tuning.com\/products\/csf-bmw-s55-m2-competition-m3-f80-m4-f82-f83-auxiliary-cooling-radiator","provider":"Inline6 Tuning","version":"1.0","type":"link"}