{"product_id":"do88-auxiliary-radiators-pair-bmw-m2-m3-m4-g87-g80-g82-s58","title":"do88 Auxiliary Radiators (Pair) – BMW M2 \/ M3 \/ M4 (G87 \/ G80 \/ G82, S58)","description":"\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eThe S58 cools the engine through three front radiators: one large center radiator and two smaller auxiliary radiators, one ahead of each front wheel. A tuned engine makes a lot more heat than the stock cooling package was sized for, and the auxiliary radiators are an easy place to add capacity. The do88 WC-440 pair replaces both with all-aluminum units that have 43 percent more core volume than stock.\u003c\/p\u003e\n\u003cp\u003eEach radiator uses a two-row, 48 mm core for about 13 percent more active cooling area, with TIG-welded tanks, CNC-machined brackets and OE-style quick-connect fittings. Because the factory radiator is the same on both sides, the do88 part drops into either side, and they are sold as a pair since upgrading just one side gives little benefit. The factory rock guards bolt straight on.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll-aluminum construction with TIG-welded end tanks\u003c\/li\u003e\n\u003cli\u003eCore volume 43 percent larger than OE\u003c\/li\u003e\n\u003cli\u003eTwo-row core, 48 mm thick; about 13 percent more active cooling area\u003c\/li\u003e\n\u003cli\u003eLarger coolant capacity than OE\u003c\/li\u003e\n\u003cli\u003eCNC-machined mounting brackets\u003c\/li\u003e\n\u003cli\u003eOE-style quick-connect inlet and outlet fittings\u003c\/li\u003e\n\u003cli\u003eDrop-in for left and right sides; accepts the OE rock guard\u003c\/li\u003e\n\u003cli\u003eReplaces OE 17118095285\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2 × do88 performance auxiliary radiators (left and right)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired extras:\u003c\/strong\u003e engine coolant to refill and bleed the system after installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation information:\u003c\/strong\u003e do88 does not publish a separate manual for this part. The auxiliary radiators sit behind the front bumper ahead of each wheel; remove the bumper and wheel liner access as needed, drain the cooling system, release the quick-connect fittings and brackets, swap the radiators, transfer the OE rock guards, then refill and run the factory bleed routine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip:\u003c\/strong\u003e doing both sides at once is recommended — do88 sells the radiators as a pair for that reason.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTuning:\u003c\/strong\u003e no tune is required; aimed at tuned and tracked cars. Pairs with the \u003ca href=\"https:\/\/speedlogicauto.com\/products\/bootmod3-s58-bmw-f97-f98-x3m-x4m-competition-tune\"\u003eBootmod3 S58 Tune\u003c\/a\u003e and \u003ca href=\"https:\/\/speedlogicauto.com\/products\/mhd-super-license-for-s58\"\u003eMHD Super License – S58\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003ePrice is for the item only; labor is not included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWC-440\u003c\/strong\u003e — do88 Auxiliary Radiator, BMW M2 M3 M4 G80 G82 G87 (S58), pair\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003eG87\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 Competition\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 CS\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2024+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Competition\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 CSL\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"do88","offers":[{"title":"Default Title","offer_id":53248984187160,"sku":"WC-440","price":610.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/WC-440_1.jpg?v=1794358056","url":"https:\/\/speedlogicauto.com\/products\/do88-auxiliary-radiators-pair-bmw-m2-m3-m4-g87-g80-g82-s58","provider":"SPEED LOGIC","version":"1.0","type":"link"}