Champion Iridium - the ultimate element. This spark plug's fine-wire iridium center and platinum ground electrodes provide the sharpest spark focus for maximum performance. Product Features:Champion Iridium - Maximum Performance. Premium Spark PlugIridium center electrode delivers maximum lifeFine-wire center electrode and V-trimmed for greater ignitabilityV-trimmed ground electrode promotes sharper spark focusMaintains stable operating temperature under all engine loadsHeat-Active alloy allows electrodes to reach optimal temperature quickly
