Denso Iridium spark plug

Description for the Denso Iridium power spark plug:

It's no secret that Iridium is 6 times harder then platinum, 8 times stronger, and resists melting in temperatures exceeding 4,000 degrees Fahrenheit. Denso Iridium spark plugs feature the world’s smallest center electrode, measuring 0.4mm in diameter. Because the majority of sparks are exposed to the air/fuel instead of the metal surface, the fuel burn is greater (0.5 increase over platinum), which ultimately improves gas mileage. Please specify the make, model, body type (2-door, 4-door), and engine size of your car when you order.