Description
CSF brings over 5 decades of radiator manufacturing expertise to this high-performance all-aluminum solution for E9X, E8X, and E89 Z4 platforms. Engineered for both street and track environments, this radiator delivers superior cooling for stock and high-horsepower builds alike.
The radiator features a 2-Row 42mm core with CSF’s proprietary B-Tube Technology, which uses specially engineered tubes brazed over the seam rather than welded. This design enables thinner, lighter aluminum material while maintaining greater strength than conventional O-tube designs. The B-tube configuration creates dual liquid laminar flow and increases heat transfer surface area by approximately 15% compared to traditional tubes.
Key Features:
- 2-Row 42mm core with CSF’s exclusive B-Tube Technology for superior heat transfer
- Ultra-efficient multi-louvered fins with 6.5mm fin height precisely aligned for maximum airflow
- CNC machined quick-connect inlet/outlet connections compatible with OEM and aftermarket hoses
- CNC machined brackets and fittings engineered for exceptional durability
- All-aluminum race-style drain plug with smooth satin finish
- Drop-in fit design requiring zero modifications—accepts all OEM components including fan shroud and AC condenser
Includes:
- All-aluminum radiator core assembly
- CNC machined mounting brackets
- Quick-connect inlet/outlet fittings
- Race-style drain plug
Drop-in cooling performance. Zero modifications. Built for BMW’s finest.
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