The Wagner Tuning BMW M2 F87 S55 Side Mount Water Cooler Kit is a dedicated water-to-air charge cooling upgrade engineered to reduce coolant and charge temperatures on high-output applications running elevated boost. At sustained power levels, the factory cooling circuit can be a thermal bottleneck that limits what the tune can safely deliver. This Wagner unit uses an expanded core and improved flow geometry to extract more heat from the cooling circuit and maintain stable operating temperatures under hard use.

Direct OEM-position fitment using factory mounting points. Includes all required hardware and fittings. Recommended for modified applications and track use where coolant temperature management is a consistent concern.