CSF Aluminium Performance Radiator for BMW E46 M3 Triple Pass
The CSF Aluminium Performance Radiator is the ultimate E46 M3 radiator upgrade for fast road, track day and race use. This direct-fit BMW E46 M3 triple pass radiator uses all factory shrouding, OEM clip-on hoses and stock mounting points for an easy, bolt-in installation. If you are searching for E46 M3 radiator upgrade, E46 M3 performance radiator, CSF E46 M3 radiator, or BMW E46 M3 triple pass radiator, this is the proven cooling solution that delivers reliable temperature control and long-term durability.
Proven CSF cooling technology for the E46 M3
- Two-row B-tube core design for higher efficiency and increased surface area
- Precision multi-louvered fins with a 15% increase in cooling capacity from fin technology alone
- Triple pass flow design for maximum heat rejection in extreme and race environments
- More total cooling tubes than stock for improved coolant flow and stability
- Direct replacement that retains factory shrouding, clip-on hoses and mounting points
- Premium build quality from CSF’s Racing & High Performance Division
Unlike standard aluminium-tanked radiators that simply repackage a stock-style core, the CSF E46 M3 radiator uses advanced B-tube technology and a compact, high-efficiency two-row core to significantly improve cooling performance without unnecessary weight. The triple pass radiator layout forces coolant through the core three times, dramatically increasing contact time and heat transfer. The result is lower coolant temperatures, reduced heat soak and better consistency on track and in hot conditions.
Why choose this E46 M3 radiator upgrade
CSF’s engineering delivers race-proven performance and OEM-level fitment. Made in Indonesia in the same factory that supplies European car lines, this BMW E46 M3 performance radiator offers exceptional craftsmanship and quality control. It is a standout upgrade for S54-powered E46 M3 owners who want dependable cooling for track days, spirited B-road driving and daily use.
At Nforcd, we have used this radiator ourselves and our customers consistently report stable temperatures and improved cooling efficiency. If you are building a reliable track car, drift car or fast road E46 M3, the CSF triple pass radiator is a must-have cooling system upgrade.
Key search terms this product solves
E46 M3 radiator upgrade, CSF radiator E46 M3, BMW E46 M3 aluminium radiator, E46 M3 triple pass radiator, E46 M3 cooling system upgrade, performance radiator BMW M3 E46, B-tube radiator E46 M3, track radiator E46 M3, high performance radiator E46 M3, direct fit E46 M3 radiator replacement.
Fitment
BMW E46 M3. Fits all E46 M3 applications using factory shrouding and clip-on hoses.
Installation notes
As with any radiator replacement, you must fully bleed the cooling system after installation. Air pockets will prevent correct operation. Professional fitting recommended.
Prefer expert installation and setup for your BMW E46 M3 radiator upgrade? Nforcd can fit this radiator at our Warwickshire workshop. Request a fitting quote at Sales@nforcd.com.
Quality and warranty
Manufactured by CSF’s Racing & High Performance Division with premium materials and strict quality standards. Two year warranty against defects in craftsmanship.
Choose CSF for reliable E46 M3 cooling
Upgrade to the CSF Aluminium Performance Radiator and keep your E46 M3 running cooler, lap after lap. Order now for a direct-fit solution that outperforms stock and typical aftermarket options while maintaining OEM fit and finish.