CSF BMW F8X M3/M4/M2C Auxiliary Radiators w/ Rock Guards (Sold Individually - Fits Left and Right

This listing is for one CSF auxiliary radiator, designed for your BMW F8X M3, M4, or M2 Competition. You'll get the radiator itself, which features integrated, bolt-on rock guards to help protect the cooling fins from road debris. Since your car uses two of these radiators, you'll need to order a second one if you plan to replace both sides. These are a significant upgrade over the stock plastic units, offering increased cooling capacity and better durability.

CSF eliminated the plastic mounting pod found on the original equipment radiators, incorporating that space into the core and tanks. This means a larger 2-row, 42mm core using their B-Tube Technology, which helps dissipate heat more effectively. The all-aluminum, TIG-welded construction is strong and built to last, with mounting brackets that are more robust than the factory plastic. The satin black finish gives it a clean, stealthy look behind your car's grilles. These radiators are designed as a true 'drop-in fit,' meaning they use the factory mounting locations and quick-connect fittings, making installation straightforward.

While the stock auxiliary radiators work fine for daily driving, they can start to show their limitations when you add more power or push your car hard on the track. These CSF radiators help keep temperatures in check and extend the point at which heat soak becomes an issue, so you can enjoy longer sessions without needing cooldown laps. They also help protect your investment, especially on older vehicles where the original radiators may have damaged or clogged fins.