【High-Performance Spark Plugs】 DENSO's IRIDIUM TOUGH spark plugs provide superior ignition performance and improve engine efficiency. They are particularly well-suited for vehicles that require high-RPM performance. 【Durability】 These spark plugs use a highly durable iridium alloy, achieving a long lifespan. This reduces the frequency of replacement and lowers maintenance costs. 【Set Contents】 - Brand: DENSO - Model Number: V9110-5656 - Part Number: VXUH22I - Quantity: Set of 6 I purchased these for a CP3 but am selling them without using them, so if anyone is planning to replace their spark plugs, please consider these. The outer box has dents and warping. The contents are unused and unopened.