Mishimoto Performance MMRAD-WRX-01 Aluminum Radiator for Subaru WRX & STI years 2002-2007 with a manual transmission only. Whether you daily drive a stock STI or rally a modified WRX, an efficient cooling system is key to extending the life of your flat-four. The plastic end tanks of the stock radiator are especially prone to cracking from years of constant variation in temperature. A radiator failure can result in overheating, head gasket failure, and other engine damage that can quickly put an end to a fun day at the track. Protect your investment with the Mishimoto performance radiator engineered specifically for the 2002–2007 Subaru WRX/STI. After identifying the radiator in these vehicles as a weak point, our engineers set out to provide an efficient, durable radiator that can take the abuse of competitive driving and provide the reliability you need for daily commuting. It features all-aluminum construction, which provides increased heat and pressure tolerance, improved heat dissipation, and improved cooling efficiency. The 100% brazed aluminum core and TIG-welded end tanks provide optimal durability and years of efficient and reliable service. This aluminum radiator is a complete bolt-in unit and replaces the factory radiator without requiring any modification to your Subaru. The Mishimoto Subaru Performance Aluminum Radiator includes a 1.3 Bar High-Pressure Radiator Cap. This cap effectively raises the boiling point of the coolant, thus providing a higher threshold for safe temperatures and resulting in a more efficient cooling system. This radiator provides a significant increase in coolant capacity, which allows for aggressive driving while retaining safe coolant temperatures. Keep your Subaru on the street and out of the shop with the Mishimoto Subaru WRX and STI Performance Aluminum Radiator. Every Mishimoto aluminum radiator includes a Lifetime Warranty.

Notes: This radiator is for Manual Transmission vehicles. For automatic Subaru’s, please purchase additional Mishimoto Universal Transmission Cooler Kit.

***For 2002-2003 Subaru WRX models built before 7/2002, remove fill neck overflow nipple and replace with 1.5875mm NPT plug provided.

Purchase Includes:
Mishimoto MMRAD-WRX-01 Radiator
Radiator Cap
1.5875mm NPT Plug
Fan Mounting Hardware
Magnetic Drain Plug
Mishimoto Lifetime Warranty