CSF 02-07 Subaru WRX/STI Radiator w/Built-In Oil Cooler/Filler Neck

CSF all-aluminum performance radiator with integrated oil cooler for 2002-2007 Subaru WRX and STI models. Features unique built-in oil cooler and filler neck designed specifically for EJ-series turbocharged engines. Advanced 2-row core construction with CSF's proven cooling technology. Dual-function design provides both engine coolant and oil cooling in single compact unit. CNC-machined aluminum construction throughout eliminates all plastic components. Enhanced fin density optimizes heat dissipation for high-boost applications. Perfect fitment for USDM and JDM Subaru models. TIG-welded construction ensures leak-free operation under boost and vibration. Racing-proven design tested in rally and road racing conditions.

Ultimate cooling solution for modified WRX and STI builds. Perfect for track-focused Subarus with upgraded turbos and tuning. Eliminate overheating during autocross, time attack, or rally events. Essential for EJ20 and EJ25 engines making 400+ horsepower. Integrated oil cooler maintains proper lubrication temperatures. Replace aging factory components in high-mileage performance Subarus. Ideal for enthusiasts serious about reliability and performance. Trusted by rally teams and Subaru tuning specialists worldwide.