CSF Cooling - Racing & High Performance Division 8355 CSF BMW F87 M2 and Gen 1 B58 High Performance Auxiliary Radiator - Fits select 2016-2021 BMW models

The new CSF Auxiliary Radiators are a great addition to the popular F87 (N55) & F3X/F2X Cooling Suites. As more and more owners keep pushing the limits of their M2s and Gen 1 B58s, CSF is here to keep them cool.

F87 M2 (N55) / F3X 340i/440i / F2X M240i High-Performance Auxiliary Radiator

100% All-Aluminum construction ensures the best performance and durability. The integrated mounting frame is much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and corrosion resistance. CSF auxiliary radiators offer even more durability with the integrated bolt on rock guards to keep the coolers safe. You've no doubt heard horror stories about OEM coolers getting punctured and spilling fluids all over the road or track. Now you can feel more confident that your cooling system is safer from road debris.; Compared to the OEM coolers, the CSF units are a significant upgrade. The TIG welded aluminum tanks are much larger than the OE plastic tanks offering superior strength and fluid volume. A larger 2-row 42mm core increases cooling efficiency and capacity. This high efficiency core uses CSF's Exclusive B-Tube Technology and latest 5mm fin technology, maximizing airflow and heat dissipation. These 5mm fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow.; CSF designed the coolers to be a true "Drop-in Fit" for easy installation fitting both left and right sides. Each cooler mounts in the factory location and uses the OEM quick connections. The High-Performance Auxiliary Radiators work in conjunction with the rest of the cooling system to reduce temperatures. They not only help keep temperatures in optimal ranges, but prolong the heat soak threshold. There's nothing worse than having your track session cut short because you need to do a cooldown lap.; The new CSF Auxiliary Radiators are a great addition to the popular F87 (N55) & F3X/F2X Cooling Suites. Like the other cooling systems on these BMWs, the aux rads do a pretty good job in stock form. However, once you start adding a lot of power and pushing the car in aggressive driving conditions, the factory systems start to show its limitations. As more and more owners keep pushing the limits of their M2s and Gen 1 B58s, CSF is here to keep them cool.; With many motorsports teams and race enthusiasts now pushing over 700 horsepower, the B58 is seeing coolant temperatures well above normal. Once temperatures pass a safe limit the B58 will go into limp mode. Needless to say this can ruin a race, track session, or your overall driving fun in general. CSF is here to keep your B58 running at peak performance.

Features and Benefits: 100% All-Aluminum TIG-Welded Construction; 2-Row - 42mm High-Performance Core Featuring CSF's Exclusive B-tube Technology; 2 Year Limited Warranty; High-Performance Upgrade Suitable for Professional Racing, Street Performance, or OEM Replacement; Includes Detachable Rock Guard; Individually Leak and Pressure Tested; Multi-Fit - Fits Both Left & Right Side; New "Track-Spec" 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact and Heat Dissipation; OEM Style "Quick Connect" Inlet/Outlet; Satin Black Finish for OEM+ Look; Sold Individually - most applications use 2 auxiliary radiators; Tank Volume and Core Size Increased; True "Drop-in Fit" Requires No Modifications to Install

The CSF #8355 Cooling product is designed to be a "Drop-In Fit" application. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.