Further Information
CSF's high-performance 2-row 42mm race-spec radiator is engineered to keep your WRX, STI, and related Subaru models running cool on the street or track. With over 5 decades of radiator manufacturing expertise, CSF delivers the cooling performance demanded by both high horsepower builds and motorsports environments.
This radiator features CSF's proprietary B-Tube Technology, which uses specially engineered tube designs that are stronger than traditional O-shaped tubes while allowing thinner, lighter aluminum construction. The B-tube design creates dual liquid laminar flow and increases effective heat transfer surface area by approximately 15% compared to standard tubes. Combined with ultra-efficient multi-louvered fins precisely aligned for maximum airflow, this core delivers exceptional heat rejection efficiency validated in CSF's wind-tunnel laboratory.
Key Features:
- CSF's exclusive B-Tube Technology for enhanced heat transfer efficiency
- 100% all-aluminum TIG-welded construction for durability and reliability
- Ultra-efficient 6.5mm multi-louvered fins with maximum surface area contact
- CNC machined mounting brackets for superior durability
- True drop-in fit design requiring no modifications to install
- OE-style inlet/outlet connections compatible with OEM and aftermarket hoses
- Individually leak and pressure tested for quality assurance
- 1-hour mirror finish hand polish for premium appearance
Includes:
- 2-row 42mm aluminum radiator core
- CNC machined mounting brackets
- Multi-fit combo pipe and plug design
- All necessary installation hardware
Built for maximum cooling. Engineered for the track. Perfect for the WRX/STI.