CSF Cooling - Racing & High Performance Division 8321 CSF BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator - Single Radiator - Fits 2021-2026 BMW M4, M3

CSF manufactures the most advanced and efficient auxiliary radiator in the industry for your BMW G8X M3/M4/M2. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation.

BMW G8X M3/M4/M2 High-Performance Auxiliary Radiator

100% All-Aluminum construction ensures the best performance and durability. The mounting pins and brackets are much stronger and more durable than the OE plastic pod mounting system. In addition, the black finish provides extra protection and offers a stealthy look behind the grilles of your F8X.; Compared to the OEM G8X 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.; In addition, the CSF auxiliary radiators also feature 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.; With many motorsports teams and race enthusiasts now pushing over 1000 horsepower, the S58 is seeing coolant temperatures well above normal. Once temperatures pass a safe limit the G8X 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 S58 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 - all applications use 2 auxiliary radiators; Tank Volume and Core Size Increased; True "Drop-in Fit" Requires No Modifications to Install

The CSF #8321 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.