Description
CSF brings over 5 decades of radiator manufacturing expertise to the E46 3-Series and Z4, delivering a high-performance all-aluminum radiator engineered for both street and track use. This radiator is essential for high-horsepower builds and motorsports applications requiring superior cooling performance.
Featuring a 2-Row 42mm core with CSF’s exclusive B-Tube Technology, this radiator achieves approximately 15% greater heat transfer surface area compared to conventional oval-tube designs. The innovative B-shaped tubes are seam-brazed for strength while using thinner, lighter aluminum material, creating dual liquid laminar flow within the same space envelope. Ultra-efficient multi-louvered fins with 6.5mm fin height are meticulously aligned and wind-tunnel validated for maximum airflow and heat rejection.
Key Features:
- Exclusive B-Tube Technology with seam-brazed construction
- 2-Row 42mm dual core with 15% greater surface area efficiency
- Ultra-efficient multi-louvered fins precisely engineered for maximum airflow
- CNC machined quick-connect inlet/outlet connections
- CNC machined brackets and fittings for exceptional durability
- All-aluminum race-style drain plug with satin finish
- True drop-in fit requiring zero modifications
- Compatible with OEM hoses, AC condenser, brackets and fan shroud
Includes:
- High-performance all-aluminum radiator assembly
- CNC machined mounting brackets
- Quick-connect inlet/outlet connections
- Race-style aluminum drain plug
Maximum cooling performance. Drop-in compatibility. Built for the E46 and Z4.
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