The DENSO Iridium TT spark plug (IXEH22TT) represents a significant advancement in ignition technology. Featuring a unique twin-tip design with iridium and platinum, it ensures exceptional durability and a powerful spark. This design promotes a more efficient burn, leading to improved fuel economy and reduced emissions. The Iridium TT is built to withstand extreme conditions, providing reliable performance over its extended service life. Ideal for a wide range of vehicles, these spark plugs deliver consistent starting and smooth acceleration. Trust DENSO for high-quality ignition components that enhance your vehicle's performance.