Megan Racing - Subaru WRX ’08-’14 / STI ’08-’21 Radiator – MR-RT-SI08

Cooling is critical when pushing your vehicle to its limits in racing, drifting, or spirited driving. High-load and high-RPM driving significantly increases engine temperature, requiring more from the vehicle’s cooling system. Megan Racing Aluminum Radiators are designed to effectively address these needs, keeping your engine at optimal temperatures even under extreme conditions.

This aluminum radiator offers a cost-effective solution that can prevent engine overheating during competition or intense driving. It provides a noticeable drop in temperature—often by 20 degrees or more—compared to stock radiators. The radiator is made entirely from aluminum, including both the core and tanks, which provides superior durability over factory plastic tanks that tend to crack and leak as they age. The larger heat-exchanging core improves heat dissipation, increasing coolant capacity and improving cooling efficiency.

The radiator comes with a 1.1 BAR radiator cap and is designed to be compatible with OEM fans for easy installation. It is a direct bolt-on application, but it’s important to flush the radiator and remove any air pockets before installation to prevent overheating due to low coolant or air in the system.

Vehicle Fitment

• Subaru WRX 2008
• Subaru WRX 2009
• Subaru WRX 2010
• Subaru WRX 2011
• Subaru WRX 2012
• Subaru WRX 2013
• Subaru WRX 2014

• Subaru WRX STI 2008
• Subaru WRX STI 2009
• Subaru WRX STI 2010
• Subaru WRX STI 2011
• Subaru WRX STI 2012
• Subaru WRX STI 2013
• Subaru WRX STI 2014
• Subaru WRX STI 2015
• Subaru WRX STI 2016
• Subaru WRX STI 2017
• Subaru WRX STI 2018
• Subaru WRX STI 2019
• Subaru WRX STI 2020
• Subaru WRX STI 2021

Specifications and Features

• Construction: All Aluminum
• Radiator Cap: 1.1 BAR Included
• Compatibility: OEM Fans
• Warranty: 1-Year Against Manufacturer Defects