CSF Cooling - Racing & High Performance Division 7089 CSF BMW F-Chassis Gen 1 B58 High Performance All-Aluminum Radiator - Fits select 2016-2021 BMW models

The Focus RS was very well engineered and performed admirably out of the box. However, a few upgrades can quickly lead to heat issues, especially on the track or in hot climates. An upgraded radiator from CSF is the perfect solution.

BMW F-Chassis Gen 1 B58 High-Performance All-Aluminum Radiator

As more enthusiasts push the performance limits of F-Chassis BMWs, the factory radiator has started to show its age. Increased boost and upgraded turbos generate significantly more heat, and the stock system can struggle to keep up. Combined with the heat exchanger mounted in front of the radiator, engine coolant temps can get too hot, especially during track use which can trigger limp mode.; CSF has built a reputation for producing the best B58 cooling systems on the market. Backed by years of experience and input from customers, race teams, and development partners, CSF leads the industry in Gen 1 B58 cooling technology.; CSF, the industry leader in high-performance BMW cooling, is the top choice for F3X and F2X owners who want more than just OEM reliability. Whether you're building a serious track machine or simply want a bulletproof upgrade, the new CSF High-Performance Radiator delivers unmatched durability and cooling efficiency for your Gen 1 B58 BMW.; Key Design Features: 20-25% increase in heat transfer efficiency using CSF's exclusive 5mm fin technology. Improved cooling performance to support high-boost, big-turbo builds. All-aluminum construction for superior durability over OEM plastic tanks. Designed to work seamlessly with factory or aftermarket heat exchangers.; On top of that, OEM plastic radiators degrade over time. With clogged tubes, damaged fins, and a higher risk of cracked tanks or gasket failure, replacing the stock radiator becomes essential for long-term reliability and performance.; Whether you're building a street sleeper or prepping for your next track day, CSF's Gen 1 B58 Radiator is engineered to handle the heat and then some.

Features and Benefits: 100% All Aluminum TIG-Welded Construction; 2-Row - 42mm Ultra-High-Performance Core; 2-Year Limited Warranty; CNC Machined Mounting Brackets and OEM Style Inlet/Outlet; Cooling Tubes with CSF's Exclusive B-Tube Technology; Hand Brushed Satin Finish; Individually Leak and Pressure Tested; New "Track-Spec" 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact and Heat Dissipation; True Plug-and-Play "Drop-in Fit" Installation Requires Absolutely No Modifications

The CSF #7089 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.