Megan Racing MR-RT-HC06S Radiator

Key Features and Benefits

• Full Aluminum Construction: Made from T-6061 lightweight aluminum, ensuring strength, corrosion resistance, and superior heat transfer.

• Dual-Row Core Design: Increases coolant capacity and improves thermal efficiency compared to factory single-core radiators.

• High-Performance Cooling: Helps maintain stable engine temperatures during spirited driving, track days, or hot-weather conditions.

• Direct OEM Fitment: Designed to bolt directly to factory mounts with no modifications needed.

• 1.1 Bar Radiator Cap Included: Improves cooling system pressure and raises the boiling point for better overall performance.

• Lightweight Design: Reduces front-end weight while enhancing reliability and performance.

Why Choose the Megan Racing MR-RT-HC06S?

The stock Honda Civic radiator works fine for casual driving, but once you add power upgrades, spirited driving, or track use, the factory system often struggles to keep up. The Megan Racing MR-RT-HC06S solves that issue by offering greater cooling capacity, faster heat dissipation, and stronger materials that resist cracking or leaking over time.

Drivers report improved coolant temperature stability and reduced overheating during extended high-RPM driving — making it an excellent upgrade for Civic Si owners who demand performance without sacrificing reliability.

Perfect for Street or Track Use

Whether you’re daily commuting, attending weekend track days, or building a reliable performance setup, the MR-RT-HC06S provides the cooling confidence you need. It’s ideal for:

• Naturally aspirated or turbocharged builds

• High-revving track sessions

• Warm climates or extended highway drives

Installation Tips

Installation is straightforward: the Megan Racing MR-RT-HC06S uses stock fans, hoses, and mounting locations. Be sure to:

• Flush the old coolant before installation.

• Properly bleed the system to remove air pockets.

• Inspect hoses and clamps for wear before reinstallation.

With proper installation and maintenance, this radiator will provide years of reliable cooling performance.

Final Thoughts

The Megan Racing MR-RT-HC06S Aluminum Radiator is a must-have upgrade for any 2006–2011 Honda Civic Si owner looking for improved cooling, better reliability, and enhanced performance. With its durable T-6061 aluminum construction, 2-row core, and OEM fitment, it’s the perfect blend of value and performance.

Whether you’re carving canyons, attending a track day, or simply keeping your Civic Si in top shape, this radiator ensures your engine stays cool, efficient, and ready for anything.

We are proud to introduce the new Megan Racing high performance aluminum radiator. Anytime an individual introduces their car to a racing/drifting environment, the temperature of the vehicles engine will skyrocket. One common and effective method of reducing engine temperature is to employ an aluminum radiator. This is a cost effective upgrade which can ultimately save an engine during competition or spirited driving. Often times, a temperature drop of twenty degrees or more will be noticed when using an aluminum radiator. Also included is a 1.1 bar radiator cap.

This is a cost effective upgrade which can ultimately save an engine during competition or spirited driving
Often times, a temperature Drop of twenty degrees or more will be noticed when using an aluminum radiator
One common and effective method of reducing engine temperature is to employ an aluminum radiator