NGK Racing Spark Plug (R5672A-10)

NGK Racing spark plugs are built for the toughest racing conditions. These plugs are designed to handle the extreme demands found in motorsports, with special center electrode designs that focus on durability and reliable ignition. You'll find NGK plugs used by champions across many racing disciplines worldwide.

The construction of these plugs includes a trivalent metal plating on the exterior, which helps prevent corrosion and seizing, making installation and removal easier. The pure alumina silicate ceramic insulator offers solid strength and efficient heat transfer, while unique insulator nose shapes can improve throttle response. They also feature corrugated ribs to prevent flashover and a copper core that aids in heat dissipation. Triple seals are incorporated to ensure there are no leaks.