Description
CSF brings over five decades of cooling expertise to the E39 M5 and 540i platform with this high-performance all-aluminum radiator designed for both street and track use. Whether you’re running a high horsepower build or competing in motorsports, this radiator delivers the added cooling performance needed to keep your engine running at its best.
This radiator features a proprietary 2-Row 42mm core with CSF’s exclusive B-Tube Technology, which replaces traditional oval-shaped tubes with specially engineered B-shaped tubes that are brazed over the seam. This design increases heat transfer surface area by approximately 15% while using thinner, lighter aluminum material that’s actually stronger than welded O-tube designs.
Key Features:
- 2-Row 42mm dual core with exclusive B-Tube Technology
- Ultra-efficient multi-louvered fins with 6.5mm fin height for maximum surface area
- CNC machined quick-connect inlet/outlet connections compatible with OEM hoses
- All-aluminum race-style drain plug with smooth satin finish
- CNC machined brackets and fittings for superior fit and durability
- True drop-in fit requiring no modifications to install
Includes:
- High-performance all-aluminum radiator core
- OE-style CNC machined mounting brackets
- Quick-connect inlet/outlet fittings
- All attaching OEM components compatible
Superior cooling engineered for the E39 M5 and 540i. Street or track ready.
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