CSF 7059 Triple Pass Alloy/Aluminum Radiator for BMW M3 E90 E92 E93 (E9X) S65 V8 - Uprated Direct-Fit Drop-In Cooling Upgrade | Motorsport Track Day B-Tube Core Water Radiator Heat Exchanger

CSF 7059 Race-Spec 3-Pass Full Alloy Rad for BMW M3 E90 E92 E93 S65 V8

Keep your S65B40 running cool with the CSF 7059 performance radiator. This motorsport-grade, full aluminium heat exchanger is engineered specifically for the E90, E92 and E93 M3, delivering stable coolant temps on fast road, track days, time attack and drift use. If you are chasing reliable temperature control, stronger construction and efficient heat rejection for your E9X M3, this is the proven choice.

Why this CSF cooler belongs on your E9X M3

• 3-pass flow path for maximum thermal efficiency. Coolant travels across the core three times for extended contact and improved heat transfer under sustained load.
• Full aluminium construction for durability and rapid heat dissipation, a serious upgrade over a standard plastic-tank radiator.
• CSF B-tube core technology. Stronger than conventional O-type tubes and designed to use thinner, lighter alloy for enhanced cooling performance.
• Approx 15 percent increase in internal tube surface area vs regular tubes thanks to the central web, delivering the effect of two smaller tubes within the same space for efficient dual laminar flow.
• High-efficiency multi-louvered fin design. Precisely aligned fins measured and tested by CSF to maximise airflow and core effectiveness.
• Industry-leading CSF testing and quality control for consistent on-road and on-circuit performance.

Real-world results you can trust

We run this CSF cooler on our own cars and customer builds at MJ Modifications. Feedback is consistently positive, with noticeably improved thermal stability during hard driving and confidence backed by CSF’s lifetime warranty.

Fitment

• BMW M3 E90 Saloon with S65 V8
• BMW M3 E92 Coupé with S65 V8
• BMW M3 E93 Convertible with S65 V8

Part number

CSF 7059

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Warranty

CSF lifetime warranty for peace of mind.

Fitting and support

For professional installation and setup advice, we recommend booking fitting with MJ Modifications in Warwickshire. Request a fitting quote at info@mjmodifications.co.uk. We are happy to assist with guidance for track and fast road M3 builds.

Compatibility check before dispatch

To ensure correct fitment, we will verify compatibility before shipping. Please provide your UK registration number or the last 7 digits of your VIN at checkout and our team will confirm suitability.

Why buy from MJ Modifications

• Proven on our own BMW M3 and on customer cars
• Expert knowledge of E9X M3 cooling upgrades
• Friendly UK-based support, fitment guidance and aftercare

Choose the CSF 7059 for dependable cooling, stronger construction and consistent performance on road and track. Order today and upgrade your E9X M3’s thermal management with confidence.