CSF 3076B Cooling Radiator Aluminum (Black) for SUBARU WRX/STi 2002-2007

Part number3076B

With over fifty years of experience in radiator manufacturing, CSF is the obvious choice when it comes to keeping your Subaru WRX/STI's engine cool and performing at its peak. Designed for track or race applications, this high-performance, all-aluminum radiator is a must-have for high-output vehicles and race cars that require enhanced cooling efficiency in motorsport environments. This radiator features a 2-row core with CSF's exclusive B-Tube Technology: Unlike standard "O" style oval radiator tubes, CSF uses specially designed "B" shape tubes. These B-tubes are meticulously formed and seam-soldered to seal them. CSF can use thinner, lighter aluminum material (with greater cooling efficiency) because this design is actually stronger than standard "O" style welded tubes. The design (inlet opening in the middle of the tube, seam-soldered) increases the surface area of the tubes' heat exchange by approximately 15% compared to standard tubes – the efficiency of two smaller tubes compared to one larger tube under the same space constraints. With B-tubes, "dual-row laminar flow" can be achieved. CSF also utilizes highly efficient fin plates that are carefully and precisely aligned to maximize airflow through the radiator core. Fin characteristics are meticulously measured and calculated for each application and tested for maximum heat dissipation efficiency in a wind tunnel laboratory.

The CSF Radiator for the Subaru WRX/STI is a true "Drop-in fit" design, requiring no modifications for installation. OE-style mounting brackets are CNC-machined and welded for maximum strength. The inlet/outlet ports are designed to match the OEM ports, so you can use OEM or aftermarket hoses. Trust the cooling experts at CSF for the most efficient, high-quality, and reliable radiators.