Mishimoto MMB-WRX-002 Ultimate Cooling Bundle Kit for Subaru WRX 2001-2005

The Mishimoto MMB-WRX-002 Ultimate Bundle is a comprehensive cooling system upgrade package engineered to address every primary failure point in the 2001–2005 Subaru WRX cooling system. Rather than replacing components one at a time, this all-in-one kit delivers a complete thermal management overhaul, reducing downtime and ensuring all critical components work together as an integrated system.

What's Included:

• Performance Aluminum Radiator – Full aluminum construction with durable, TIG-welded end tanks for increased coolant capacity and superior heat dissipation
• Performance Fan Shroud – Engineered to complement the aluminum radiator for optimized airflow management
• Silicone Radiator Hose Kit – High-grade 4-ply silicone construction with heat-resistant embedded fibers for superior heat and pressure tolerance
• Silicone Ancillary Hose Kit – Same premium 4-ply silicone construction covering secondary cooling circuit hoses
• Racing Thermostat – Opens at 154.4°F versus the factory unit's 172.4°F, allowing coolant to circulate earlier and reduce the risk of overheating
• Aluminum Coolant Expansion Tank – Fully TIG-welded, all-aluminum construction engineered to withstand repeated thermal cycling
• Thermostatic Oil Cooler Kit – Direct-fit unit proven to reduce oil temperatures by up to 20°F under aggressive driving or track conditions
• Titanium Turbo Blanket – Reduces engine bay radiant heat and helps maintain turbocharger efficiency

Key Features:

• Replaces all primary cooling system failure points in a single installation
• Aluminum radiator delivers increased coolant capacity for efficient thermal management
• Racing thermostat activates at 154.4°F — significantly earlier than the OEM 172.4°F threshold
• 4-ply silicone hoses resist cracking, collapsing, and heat degradation far beyond OEM rubber
• Oil cooler kit provides measurable oil temperature reduction of up to 20°F
• Titanium turbo blanket retains heat within the turbo for improved spool efficiency while lowering underhood temperatures
• Backed by the Mishimoto Lifetime Warranty

The MMB-WRX-002 Ultimate Bundle is the definitive cooling system solution for performance-driven or high-mileage 2001–2005 Subaru WRX owners looking to upgrade every thermal component at once with factory-fit precision and Mishimoto's proven engineering quality.