Wagner Tuning Audi RS3 8Y Upgrade Engine Radiator Kit
The Audi RS3 8Y is already a seriously capable performance car, but if you’re pushing it harder, whether through tuning or regular track use, keeping engine temperatures under control becomes increasingly important. This upgrade radiator kit from Wagner Tuning replaces the standard side-mounted engine water coolers with significantly larger all-aluminium units, improving cooling efficiency where it matters most.
Wagner Tuning have made full use of the available space in the engine bay, increasing the volume of the water coolers by 132% compared to the OEM (original equipment manufacturer) units. In plain terms, that means more coolant capacity and a greater ability to absorb and dissipate heat, helping to keep your engine running at a stable temperature even under sustained hard driving.
OEM vs Wagner Tuning – Cooling Capacity Compared
| OEM Water Cooler | Wagner Tuning Upgrade | |
|---|---|---|
| Dimensions | 200 mm x 230 mm x 44 mm | 205 mm x 242 mm x 86 mm |
| Volume | 1.84 litres | 4.27 litres (+132%) |
| Surface Area | 460 cm² | 496 cm² (+8%) |
The increased core depth is what drives that volume gain. The footprint is only slightly larger, but the deeper core holds substantially more coolant and provides far greater heat transfer. The all-aluminium construction helps here too, as aluminium is an excellent conductor of heat, moving it away from the coolant quickly and efficiently.
What’s Included
- Driver side and passenger side upgrade water coolers (complete pair)
- Additional mounting brackets for straightforward installation
This is a direct replacement kit. The coolers are designed to fit in the same location as the originals, so there’s no cutting or major modifications required. The included brackets help ensure a clean, secure fitment.
Who Is This For?
This kit is particularly well suited to RS3 8Y owners who use their car on track, have added performance modifications (such as a remap or upgraded turbo components), or simply want a more robust cooling setup for peace of mind. It’s not a necessary upgrade for a standard road car used in normal conditions, but for anyone pushing the engine harder than usual, better cooling is a sensible foundation.
Important: This kit is designed specifically for the Audi RS3 8Y. Please use the vehicle lookup tool on this page or check the Vehicle Fitment tab to confirm compatibility with your exact vehicle before ordering.
Additional Information
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