Bulk Purchase Set: Denso Iridium Power Spark Plugs IK20, Set of 4

Iridium Power uses a 0.4mm diameter iridium alloy center electrode and a special ground electrode to achieve unprecedented spark performance. This produces stable, high-response sparks under a variety of driving conditions. As a result, your vehicle's acceleration and torque improve compared to standard spark plugs. Iridium Power ensures stable ignition even when engine speed is unstable, improving acceleration performance. Even during idling, where ignition tends to be poor, Iridium Power reduces mis-sparks and stabilizes idle speed. This results in quieter engine noise and improved combustion. Country of Origin: Japan Package Weight: 0.48 pounds