Megan Racing MR-RT-MMX59918 Radiator

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.

Key Features & Benefits

• High-performance aluminum construction: Lightweight but strong, better heat dissipation than stock plastic tank/rubber hose radiators. shutokoengineering.com+1

• Core dimensions of 52 mm (dual-row): Larger than stock, meaning increased coolant flow and greater heat-exchange surface. meganracing.com+1

• Includes 1.1 bar radiator cap: Upgrades over stock cap for better pressure tolerance, aiding cooling efficiency. meganracing.com

• Cost-effective performance upgrade: While high-end radiators cost hundreds more, this one offers serious value. Heat reduction under aggressive use is one of the major perks. shutokoengineering.com+1

Why This Matters for a Miata Enthusiast

For someone who loves modifying, improving, and pushing their car (like you—IT engineer by day, youth-hockey coach by night, sarcasm always on standby), this kind of upgrade makes a ton of sense:

• Better cooling means less risk of overheating during intense use (track days, canyon runs, even spirited street driving).

• Reduced engine temps = longer engine life, better performance, less heat soak for intake systems, turbochargers (if your build has one).

• The upgrade is pretty straightforward—less complex than some suspension or drivetrain mods, making it a solid “impact vs effort” improvement.

• It also adds real value if you ever resell or trade the car: your cooling system’s enhanced (which shows you cared).

Things to Keep in Mind (Potential Trade-Offs)

• This model is manual transmission only. If your MX-5 is automatic, this radiator may not fit properly. Redline360+1

• Some fitment adjustment may be required (tabs bending) for the NB chassis. Make sure you have basic tools and patience.

• Even high-quality radiators still need proper coolant flushing, air-bleeding, and correct installation—failure to purge air pockets or use correct coolant can lead to overheating. The manufacturer warns about this. shutokoengineering.com+1

• While this is a high-performance part, it still remains a budget-friendly solution, meaning finish quality or extras (like multi-row core options, fans bundled) might not be on par with premium brands. You get value, but align expectations accordingly.

Final Verdict

If you own a Miata NB/NC with a manual transmission and you’re looking to up the performance ante (or simply avoid overheating during spirited sessions), the Megan Racing MR-RT-MMX59918 is a strong recommendation. It’s purpose-built, fits your model, gives real cooling improvement, and aligns with your mindset of “smart upgrades that matter”.

Upgrade your radiator, keep your engine running cool, and spend less time worrying about temps—and more time enjoying the drive (and yeah, cracking jokes about your sarcastic commentary of track-day feats).

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
Package Dimensions: 15.24 L x 72.39 H x 52.07 W (centimeters)
Country of Origin : China