Koyo Aluminum Racing...

Koyo Aluminum Racing...


Subaru WRX/STI 2003-2007

SKU: VH091672 Categories: ,




  • 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



There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.