
Further Information
The CSF BMW E9X M3 Triple Pass High-Performance All-Aluminum Radiator combines over five decades of cooling expertise with advanced thermal engineering designed for street and track use. This 2-Row, 42mm core radiator delivers superior heat rejection through innovative design and precision manufacturing.
Built for high-horsepower builds and motorsports environments requiring maximum cooling performance, this radiator features CSF's exclusive B-Tube Technology and ultra-efficient multi-louvered fins engineered for optimal airflow and heat transfer.
Key Features:
- Triple-Pass Flow Structure allows coolant to traverse the core three times for lowest outlet temperatures
- Exclusive B-Tube Technology increases heat transfer surface area by approximately 15% over standard tubes
- Ultra-efficient multi-louvered fins with 6.5mm fin height and dual liquid laminar flow design
- 2-Row 42mm core (Dual Core) for maximum cooling capacity
- CNC machined brackets, fittings, and Quick-Connect inlet/outlet connections for superior fit and durability
- All-aluminum race-style drain plug with smooth satin finish
- Drop-in fit design requiring no modifications – accepts all OEM components including Quick Connect hoses, AC condenser, and fan shroud
- Fins precision-tested in CSF's wind-tunnel lab for maximum heat rejection efficiency
Includes:
- High-Performance All-Aluminum Radiator Assembly
- CNC Machined Brackets and Fittings
- OEM-style Quick-Connect Inlet/Outlet Connections
- Race-style Aluminum Drain Plug
Drop-in performance cooling for the E9X M3 – engineered for reliability and thermal efficiency.