NGK Iridium Heat Range 9 Racing Spark Plug | 2006 Mitsubishi Evo 9 (R7437-9)

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NGK 4654 R7437-9 Racing Plug

The next generation of spark plugs. NGK is a pioneer in Iridium Spark Plug designer and manufacturer - More Durability and a Higher - Melting Point Than Platinum - Better Center Electrode Anti-Oxidation and Anti-Erosion - Improved Ignition - Superior Anti-Fouling - Lower Required Voltage. Recommended for all EVO 9s with extreme modifications.

Please Note:

  • ALL PLUGS SOLD INDIVIDUALLY. Price is for one spark plug.


  • Fine Wire Center Electrode Ensures High Durability and a Consistently Stable Spark
  • Iridium Alloy has an Extremely High Melting Point, Perfect for Today's High-Tech, High Performance Engines
  • Trivalent Metal Plating Provides Superior Anti-Corrosion and Anti-Seizing Properties
  • Corrugated Ribs Prevent Flashover
  • Pure Alumina Silicate Ceramic Insulator, Provides Superior Strength and Better Heat Transfer
  • Copper Core Aids in Heat Removal
  • Triple Seals Prevent Leakage


  • 2006 Mitsubishi Evo 9

What's in the box?

  • (1) NGK 4654 R7437-9 Racing Plug

Customer Reviews

Based on 1 review
Donald Moore

I'm happy with the plugs and the service that I got from you guys,the shipping was great