{"product_id":"do88-auxiliary-radiators-bmw-g8x-m2-m3-m4","title":"do88 Auxiliary Radiators | BMW G8X M2 M3 M4","description":"\u003cp class=\"p1\"\u003eImprove engine cooling performance on your S58-powered BMW with the \u003cspan class=\"s1\"\u003e\u003cb\u003edo88 Performance Auxiliary Radiators\u003c\/b\u003e\u003c\/span\u003e, designed to provide increased cooling capacity for tuned, high-performance and track-driven G8X vehicles.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe kit replaces both factory auxiliary radiators with larger, full-aluminium units featuring increased core volume, greater active cooling area and a direct-fit design.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImproved S58 Engine Cooling\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe BMW S58 cooling system uses three front-mounted engine coolant radiators: one large central radiator supported by two smaller auxiliary radiators positioned ahead of the front wheels.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eAs engine output increases, so does the amount of heat the cooling system must manage. During demanding street driving, track use or other sustained high-load conditions, maintaining consistent coolant temperatures becomes increasingly important.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe factory auxiliary radiators utilise relatively slim cores and plastic end tanks. The do88 replacements have been developed to significantly increase cooling capacity while maintaining compatibility with the factory cooling system.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e43% Larger Core Volume\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eTaking advantage of the available space within the G8X front cooling package, do88 has increased both the frontal surface area and thickness of the auxiliary radiator cores.\u003c\/p\u003e\n\u003cp class=\"p3\"\u003eEach radiator uses a \u003cspan class=\"s1\"\u003e\u003cb\u003e48 mm thick, two-row core\u003c\/b\u003e\u003c\/span\u003e, resulting in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e43% greater core volume\u003c\/b\u003e\u003c\/span\u003e compared with the factory radiator\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e13% greater active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased coolant capacity\u003c\/li\u003e\n\u003cli\u003eImproved heat dissipation under sustained load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThe increased cooling capacity makes these radiators particularly suited to tuned S58 applications where the factory cooling system is subjected to greater thermal loads.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eFull Aluminium Construction\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe factory plastic end tanks are replaced with a robust \u003cspan class=\"s1\"\u003e\u003cb\u003efull-aluminium design\u003c\/b\u003e\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eEach radiator features TIG-welded aluminium end tanks together with CNC-machined mounting hardware and connections, providing increased durability for high-performance applications.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDirect-Fit Installation\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThe do88 Performance Auxiliary Radiators are engineered as direct replacements for the factory units.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThey feature \u003cspan class=\"s1\"\u003e\u003cb\u003eOE-style Quick Connect inlet and outlet connections\u003c\/b\u003e\u003c\/span\u003e, together with CNC-machined mounting brackets for straightforward installation.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe original BMW rock guards can also be retained, helping protect the upgraded radiator cores from stones and road debris.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBoth left and right radiators are included, allowing the cooling system to be upgraded evenly rather than replacing only one side.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003eSupplied as a \u003c\/span\u003e\u003cspan class=\"s2\"\u003e\u003cb\u003epair – left and right auxiliary radiators\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003e43% larger core volume\u003c\/b\u003e\u003c\/span\u003e than the factory radiators\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e48 mm thick two-row cores\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e13% increased active cooling area\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eIncreased coolant capacity\u003c\/li\u003e\n\u003cli\u003eImproved heat dissipation\u003c\/li\u003e\n\u003cli\u003eFull aluminium construction\u003c\/li\u003e\n\u003cli\u003eTIG-welded aluminium end tanks\u003c\/li\u003e\n\u003cli\u003eCNC-machined mounting brackets\u003c\/li\u003e\n\u003cli\u003eOE-style Quick Connect coolant connections\u003c\/li\u003e\n\u003cli\u003eCompatible with factory BMW rock guards\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the factory auxiliary radiators\u003c\/li\u003e\n\u003cli\u003eDesigned for tuned and high-performance S58 applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eVehicle Compatibility\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p3\"\u003eDesigned for \u003cspan class=\"s1\"\u003e\u003cb\u003e2021+ BMW G8X S58 applications\u003c\/b\u003e\u003c\/span\u003e, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBMW M2 G87\u003c\/li\u003e\n\u003cli\u003eBMW M3 G80\u003c\/li\u003e\n\u003cli\u003eBMW M3 Touring G81\u003c\/li\u003e\n\u003cli\u003eBMW M4 G82\u003c\/li\u003e\n\u003cli\u003eBMW M4 Convertible G83\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eAlways confirm compatibility with your specific vehicle before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eImportant Information\u003c\/b\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"p1\"\u003eThis product is intended for performance use and should be installed by a qualified professional.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eIt is the customer’s responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eGridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eDue to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Do88 Performance","offers":[{"title":"Default Title","offer_id":47154754977990,"sku":"WC-440","price":929.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/WC-440_1_jpg.webp?v=1788828057","url":"https:\/\/www.gridlinecustommotorsports.com.au\/products\/do88-auxiliary-radiators-bmw-g8x-m2-m3-m4","provider":"Gridline Custom Motorsports","version":"1.0","type":"link"}