CSF Subaru Impreza WRX/STI 2008-2015 High-Performance Radiator (1-Row-31mm)

CSF has over 5 decades of experience manufacturing radiators, so when it comes to keeping your engine cool and your WRX/STI running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Most factory radiators are manufactured with plastic upper and bottom tanks, which will eventually weaken over time and leak, leading to overheating and an entirely different set of problems. CSF resolves this with all-aluminium construction throughout.

Both core options use CSF's exclusive B-Tube technology. Rather than a regular oval "O"-shaped tube, CSF uses a specially engineered tube shaped like a "B", carefully formed and brazed over the seam to seal. This increases the heat transfer surface area of the tubes by approximately 15% over regular tubes, delivering the efficiency of two smaller tubes versus one large tube within the same space, and allows CSF to use thinner, lighter aluminium with better cooling efficiency, since this design is actually stronger than normal welded "O"-shaped tubes. High-efficiency, multi-louvered fins are precisely aligned and wind-tunnel tested for maximum heat rejection efficiency. Every unit undergoes a 30-point fitment inspection on critical dimensions to ensure genuine OE fitment with no modifications necessary.

Why Choose This Radiator

• CSF's exclusive B-Tube core technology, approximately 15% more heat transfer than regular tubes
• Two core thickness options to match your specific use case and power level
• All-aluminium construction eliminates the OEM's plastic tank weak point
• 30-point fitment inspection on critical dimensions for genuine OE fitment
• Wind-tunnel tested multi-louvered fins for maximum heat rejection
• True drop-in fit, no modifications necessary

Compatibility

• Subaru Impreza WRX Sedan/Hatchback (2008-2014, manual transmission)
• Subaru Impreza STI Sedan/Hatchback (2008-2014, manual transmission)
• Subaru WRX/STI (2015, manual transmission)