Koyo Aluminum Racing Radiator 2008+ Subaru STI

  • Sale
  • $339.99
  • Regular price $408.00

Koyo Aluminum Racing Radiator 2008+ Subaru STI

RallySport Direct carries a large selection of Koyo Aluminum Racing Radiators to suit your application for improved cooling performance. These feature all-aluminum construction and are direct replacements for your factory radiator. 




  • All aluminum construction
  • Heli-arc welded for stronger enforcement along aluminum connections
  • Thicker core
  • Precise tube and fin alignment promotes optimal coolant flow and fins with highly efficient heat transfer
  • NoClock Brazing is featured on the tubes, fins, headers, and brackets using a state-of-the-art NoClock furnace which bonds all components to resist damage from vibration, road debris, and the elements
  • Billet Filler Neck is precision machined for durability
  • Fits manual transmission




  • The upper radiator hose may require trimming for proper clearance