Performance:Set of 4 upgrade spark plugs;Every spark plug is tested before shipment;Direct replacement,easy installation;This high-performance spark plug uses advanced Iridium-Platinum materials to last up to 80,000 miles—far longer than copper (20K) or iridium (30-40K) plugs. Enjoy smoother starts, better fuel economy, fewer misfires, and more consistent engine performance.
Note: This spark plug features an upgraded dual-electrode design with a platinum ground electrode tip and an iridium center electrode tip. Compared to many original spark plugs made with copper-nickel or single iridium tips, kindly double-check before purchase, if this is concern, please consider before placing your order.