CSF BMW F87 M2 and Gen 1 B58 High Performance Auxiliary Radiator

When you're pushing your BMW's engine hard, especially on the track or during aggressive street driving, keeping coolant temperatures in check is crucial. This high-performance auxiliary radiator from CSF is designed to help manage those higher temperatures. It's a direct replacement for the factory auxiliary cooler, fitting into the original location and using the stock quick-connect fittings for an easier installation. This unit is sold individually, and many applications use two for maximum cooling capacity.

What you get here is a well-built, all-aluminum radiator that's a significant step up from the plastic OEM cooler. The TIG-welded tanks hold more coolant, and the 42mm, 2-row core features CSF's B-tube technology and 5mm fins. This design maximizes the surface area for heat exchange, helping to dissipate heat more effectively and prolonging the point at which the engine might start to overheat. It also comes with a bolt-on rock guard to help protect the cooler from road debris, a common issue with the factory setup.

This auxiliary radiator is a smart addition for owners of popular BMW models like the M2, 340i, and 440i who are looking to maintain optimal engine temperatures, especially after adding more power or when driving in demanding conditions. It works with your existing cooling system to reduce overall temperatures and help prevent heat soak.