High performance dual core, triple pass radiator which offers higher system capacity and a 20% increase in cooling system efficiency, 100% aluminum construction
This CSF Race radiator is a major step up over the stock radiator equipped on the E9X M3 from the factory. Unlike the single core one pass radiator equipped on a stock E9X M3 this radiator features a 2 row, 42mm dual core which not only increases system capacity but it also increases cooling efficiency by 20%.
The radiator core features an ultra-efficient fin with 6.5mm fin height and multi-louvered design for maximum surface area contact. The triple-pass flow structure allows the coolant to flow across the core of the radiator 3 times before exiting the radiator for lowest outlet temperatures possible.
CSF has also designed this radiator to be compatible with stock radiator hoses and has CNC machined “quick-connect” inlet/outlet connections along with CNC machined brackets and fittings for superb fit and durability. This allows for a direct fit installation requiring no modifications to install. Accepts all attaching OEM components including “quick-connect” hoses, AC condenser, mounting brackets, and fan shroud
Your radiator is an integral, and arguably, the most important part of the cooling system. It is designed to expel heat from the coolant via the small fins. Most radiators fail when the end tanks crack causing leaks, but higher mileage radiators which have missing or bent fins often are clogged up with debris which can also cause overheating issues as the radiator cannot expel heat effectively. If your radiator is in rough shape we recommend replacing it. We also highly recommend inspecting/replacing the upper and lower radiator hose at that time.Radiator Failure Symptoms
- Coolant Leak
- Bent Fins
- Clogged Fins cause by debris
While this is E9x M3 S65 fitment, we have this exact radiator in our E92 328xi 6 MT (N52).
CSF, The Cooling Experts, have been serving the US aftermarket for almost 4 decades. With over 30 million units sold, CSF is your exclusive source for Radiators, Condensers, Intercoolers, Inverter Coolers, Racing Radiators and Pressure Caps. Whatever the application, trust CSF radiators to keep your vehicle running cool.
When you choose CSF, you are dealing directly with the manufacturer, not a broker or an importer. CSF’s factories are ISO certified, and are OE suppliers to many US, German and Asian manufacturers. When you purchase a CSF product, you can be rest assured that it has been manufactured on the same production lines with the same high quality standards as their OE customers. Every single radiator is subject to rigorous testing procedures such as Hydrostatic Testing, Vacuum decaying and life cycle testing, and is designed to always be a “drop-in fit”.
CSF’s Racing & High Performance division is known across the world for it’s premium quality, value, durability, and most importantly, it’s industry leading levels of high performance. CSF prides itself on its high level of commitement to R&D, producing many innovations in heat transfer technology. CSF is the premiere choice of champions in many different segments of motorsports around the globe.