Mishimoto Ultimate Cooling Bundle for Subaru WRX Radiator Kit

The Mishimoto Ultimate Cooling Bundle is a complete radiator kit and cooling system upgrade for the Subaru WRX. It replaces the cooling components Mishimoto has found most likely to fail with upgraded parts. Replacing them all at once helps reduce vehicle downtime and restores cooling performance for daily driving, spirited use, or track days.

Key Features:

• Aluminum radiator: Full aluminum construction with durable, TIG-welded end tanks. It is the centerpiece of the bundle and is designed to improve coolant capacity and heat dissipation over the factory radiator.
• Silicone radiator hose kit and silicone ancillary hose kit: Made from high-grade 4-ply silicone with heat-resistant embedded fibers for strong heat and pressure tolerance.
• Racing thermostat: Opens at a lower temperature than the factory thermostat. Coolant flows through the engine earlier, which reduces the risk of overheating in hot conditions.
• Aluminum coolant overflow/expansion tank: All-aluminum, TIG-welded construction built to handle repeated hot and cold cycles.
• Thermostatic oil cooler kit: Direct-fit design that helps keep oil temperatures down when the car is driven hard or on track.
• Titanium turbo blanket: Insulates the turbo to lower engine bay temperatures and help maintain turbocharger efficiency.
• Mishimoto Lifetime Warranty coverage.

Designed and engineered by Mishimoto, this bundle gives WRX owners a direct-fit way to refresh the whole cooling system with one purchase. Component details vary by model generation, so check the individual variant listing for the exact contents of each bundle.