V-trimmed ground electrode promotes sharper spark focus
Maintains stable operating temperature under all engine loads
Champion Iridium - Maximum Performance. Premium Spark Plug
Iridium center electrode delivers maximum life
Fine-wire center electrode and V-trimmed for greater ignitability
Heat-Active alloy allows electrodes to reach optimal temperature quickly
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.