
Further Information
CSF's High-Performance All-Aluminum Radiator for 02-07 Impreza WRX/STI combines decades of cooling expertise with purpose-built engineering for street and track environments. The integrated oil cooler eliminates the need for separate components, while the exclusive B-Tube Technology delivers superior heat rejection without adding bulk.
Key Features:
- 2-Row 42mm dual core with CSF's exclusive B-Tube Technology for 15% increased heat transfer
- Ultra-efficient multi-louvered fins precisely engineered and wind-tunnel tested for maximum airflow
- All-aluminum construction with race-style drain plug and mirror-finish hand polish
- CNC machined quick-connect inlet/outlet connections compatible with OEM hoses
- Drop-in fit design requires zero modifications; accepts all OEM components including AC condenser and fan shroud
- Dual liquid laminar flow design achieves efficiency of dual tubes in single-tube space
Includes:
- 2-Row 42mm radiator core with integrated oil cooler
- CNC machined OE-style mounting brackets
- Quick-connect inlet/outlet fittings
- All hardware for direct installation
Peak cooling performance meets factory fitment. Built for the turbo H4.