Koyo Performance Radiator 99-01 Subaru Impreza RS / 99-02 Subaru Forester 2.5L | VH091163

Fitment Information

• Subaru Impreza 2.2L H4 (1999–2001)

• Subaru Impreza 2.5L H4 (1999–2001)

• Manual transmission only

• Fits RS / L / Outback / Forester models (1999–2002)

• Note: 1999 models must verify down-flow OEM radiator (top & bottom tanks).
  Not compatible with crossflow-style factory radiators.

Upgrade your Subaru’s cooling performance with the Koyorad Hyper V-Core Series Aluminum Racing Radiator. Designed for vehicles with limited space and high heat demands, this ultra-efficient radiator features a specialized fin and tube pitch that maximizes surface area while maintaining strong airflow. This makes it ideal for spirited driving, racing, or any situation where superior cooling efficiency is required.

Constructed from fully brazed aluminum and hand-assembled with exceptional precision, the Hyper V-Core radiator is a direct-fit solution that retains compatibility with factory fan shrouds and requires no engine modifications. Koyorad’s industry-leading quality control—made possible by privately owned factories—ensures every radiator meets strict performance standards. With high-density cores, billet components, and precise TIG welding, this radiator delivers reliability and cooling performance trusted worldwide.

Specs & Features

• All-aluminum Hyper V-Core racing radiator

• Designed for vehicles with extreme heat and tight space constraints

• Specially engineered fin and tube pitch for expanded surface area

• Excellent airflow for improved cooling efficiency

• Direct bolt-in fit with factory inlet/outlet locations

• Compatible with OEM fan shrouds and fans

• Nocolok™ brazed construction

• Hand-assembled and hand TIG welded

• Made from premium-grade aluminum

• Brushed aluminum finish

• Two-row construction

• Billet aluminum filler neck and drain plug

• Triple pressure tested for performance and durability

Koyo Radiators Key Benefits

• High-density, fully brazed Hyper-V Series 1.4" cross-flow core

• Optimized inlet, outlet, and fan-temp switch locations

• Superior thermal efficiency under extreme conditions

• Engineered for reliability, quality, and long service life