Denso Ik20 Iridium Power Spark Plugs 5304 – 4 Pk (Ik20 (4Pk))

Iridium Power Best Demonstrates Its Performance Improvement During Acceleration. The World’S Smallest Center Electrode And Specially Shaped Ground Electrode Deliver Maximum Spark Energy While Withstanding Temperatures Greater Than 4000 F. These Features Combine To Achieve Higher Ignitability And Require Lower Spark Voltage Than Ever Before. As A Result, Acceleration Improves In Comparison With Normal Plugs.