CSF Aluminium Performance Radiator - BMW E9x M3 Triple Pass Radiator
Upgrade your BMW E9x M3 cooling system with the CSF Triple Pass Radiator. Designed for the S65 V8 and engineered for track, fast road and high-performance builds, this all-aluminium, high-efficiency radiator is the proven solution for keeping coolant temperatures stable on hard drives, in hot weather and under sustained load. Ideal for naturally aspirated and forced induction M3s seeking a serious radiator upgrade and reliable heat rejection on road and track.
The CSF E9x M3 Triple Pass Radiator features CSF’s exclusive B-Tube technology with a dual-row 42 mm core and ultra-efficient 6.5 mm multi-louvered fins for maximum surface area and rapid heat transfer. A true triple-pass flow structure routes coolant across the core three times to deliver the lowest outlet temperatures possible. CSF’s in-house wind tunnel testing shows approximately 20 percent greater heat rejection versus the OEM radiator, helping prevent heat soak and maintaining consistent performance where it matters most.
Why choose this CSF radiator for your BMW M3
- Serious cooling upgrade for E90 E92 E93 M3 with S65 V8
- Excellent for track days, spirited driving and high ambient temperatures
- Stabilises coolant temps for consistent performance and reliability
- Direct-fit, drop-in installation with OEM-style quick-connects
- Durable all-aluminium construction with CNC-machined fittings
- Hand-polished mirror finish for a premium engine bay look
Key features and specs
- Two-row 42 mm core featuring CSF’s exclusive B-Tube technology
- Ultra-efficient fin design with 6.5 mm fin height and multi-louvered fins
- Triple-pass flow design for the lowest possible outlet temperatures
- CNC-machined quick-connect inlet and outlet connections
- CNC-machined brackets and fittings for precise fit and long-term durability
- Lightweight construction - only 12 lbs
- All-aluminium drain plug
- Hand-polished mirror finish
- Drop-in fitment with no modifications required
- Accepts all standard OEM components including quick-connect hoses, AC condenser, mounting brackets and fan shroud
- Lab tested in CSF’s wind tunnel - approximately 20 percent more efficient than OEM
Fitment
- BMW M3 E90 Saloon 2006-2013
- BMW M3 E92 Coupe 2006-2013
- BMW M3 E93 Convertible 2006-2013
- Engine: S65 V8
Trusted by Nforcd and our customers
We have installed and used this CSF triple pass radiator on our own builds and for customer cars. Feedback has been excellent, with owners praising the OE-quality fitment, stable coolant temperatures and confidence it brings on track and on fast road drives.
Installation and support
This CSF radiator is a direct replacement for the factory unit and accepts all OEM ancillaries, hoses and shrouds for a straightforward install. Prefer professional fitting. Book your installation with Nforcd in Warwickshire - request a quote at Sales@nforcd.com.
Looking for a BMW M3 radiator upgrade in the UK. This CSF E9x M3 radiator is the perfect E92 M3 radiator upgrade, E90 M3 performance radiator, E93 M3 triple pass radiator and S65 cooling upgrade. Ideal search terms include BMW M3 radiator replacement, CSF Racing radiator for E9x M3, BMW M3 track radiator, E92 M3 cooling system upgrade, E90 E92 E93 M3 performance cooling and CSF triple pass radiator UK.