{"product_id":"wagner-tuning-competition-radiator-kit-400001021-bmw-g8x-m2-m3-m4-s58","title":"Wagner Tuning Competition Radiator Kit - BMW G8x S58","description":"\u003cp\u003e\u003cstrong\u003eWagner Tuning Competition Front Water Cooler Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNow with parts certification! The Wagner Tuning Competition Front Water Cooler Kit is the ultimate upgrade for thermal stabilisation of your BMW M2 (G87), M3 (G80\/G81), and M4 (G82). Specially developed for the 3.0-litre R6 biturbo engine (S58), it increases cooler volume by a massive 60% — ensuring consistent maximum performance and reliability.\u003c\/p\u003e\n\u003cp\u003eWhy this front water cooler is a must-have for your BMW M (S58):\u003c\/p\u003e\n\u003cp\u003eMassive increase in volume: the competition racing core increases the cooling capacity of the standard water cooler by an impressive +60% (14.67 litres vs. OEM 9.16 litres).\u003c\/p\u003e\n\u003cp\u003eApproved \u0026amp; legal: supplied with parts certificate for maximum safety and uncomplicated registration.\u003c\/p\u003e\n\u003cp\u003eDirect performance increase: effectively lowers the coolant temperature in the indirect intercooler circuit, improving intercooler cooling and stabilising system thermodynamics.\u003c\/p\u003e\n\u003cp\u003eMaximum heat transfer: the optimal ratio between internal and external cooling surface, achieved by increasing the construction depth, guarantees maximum heat transfer.\u003c\/p\u003e\n\u003cp\u003eDurably reliable: equipped with a heat-conducting anti-corrosion coating for long-term cooling effect and system protection.\u003c\/p\u003e\n\u003cp\u003ePlug \u0026amp; play installation: straightforward and plug \u0026amp; play thanks to detailed installation instructions.\u003c\/p\u003e\n\u003cp\u003eTechnical detail — cooling circuit optimisation for the S58:\u003cbr\u003eThe 3.0-litre R6 biturbo engine (S58) in BMW M models (G87, G80, G81, G82) uses an indirect intercooler circuit (low-temperature circuit). Charge air is cooled via a separate cooling water circuit, so lowering the cooling water temperature is the critical factor in maintaining engine performance, especially during aggressive driving or performance enhancements. The Wagner Tuning upgrade water cooler solves this bottleneck with a 60% increase in volume, primarily achieved by increasing the installation depth (from 30mm to 48mm). The increased coolant volume keeps the entire system temperature at a lower level over a longer period — essential for the 480hp to 550hp models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlug-and-play compatible with the following models (S58 engine):\u003c\/strong\u003e\u003cbr\u003e- BMW G87 M2 (460hp, from 2023+)\u003cbr\u003e- BMW G80\/G81 M3 (Base\/Competition\/Touring, 480–510hp, from 2021+)\u003cbr\u003e- BMW G82 M4 (Base\/Competition\/CSL, 480–550hp, from 2021+)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical data in direct comparison (OEM vs. Wagner Tuning):\u003c\/strong\u003e\u003cbr\u003e- Volume: from OEM 9.16L to 14.67L (+60%)\u003cbr\u003e- Dimensions (depth): from OEM 30mm to 48mm\u003cbr\u003e- Area: remains the same (3055cm²), with significantly greater depth\u003cbr\u003e- Dimensions OEM water cooler: 505mm x 605mm x 30mm, V = 9.16L, A = 3055cm²\u003cbr\u003e- Dimensions Wagner Tuning water cooler: 505mm x 605mm x 48mm, V = 14.67L, A = 3055cm²\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e BMW G87 M2, G80\/G81 M3, G82 M4 (S58 engine)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart number: \u003c\/strong\u003e400001021\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Information:\u003c\/strong\u003e This product is intended for performance use and should be installed by a qualified professional. It is the customer's responsibility to ensure compatibility with their specific vehicle prior to purchase. If you are unsure, please contact us before ordering. Gridline Custom Motorsports is not responsible for issues arising from incorrect installation, misuse, or improper product selection. Due to the nature of performance parts, some items may be special order and subject to supplier availability and lead times.\u003c\/p\u003e","brand":"Wagner Tuning","offers":[{"title":"Default Title","offer_id":45700795793606,"sku":"400001021","price":3329.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0732\/4627\/7830\/files\/Screenshot2026-04-09153243.png?v=1775713117","url":"https:\/\/www.gridlinecustommotorsports.com.au\/products\/wagner-tuning-competition-radiator-kit-400001021-bmw-g8x-m2-m3-m4-s58","provider":"Gridline Custom Motorsports","version":"1.0","type":"link"}