Experience enhanced engine performance with DENSO Iridium TT spark plugs. These plugs feature a unique Iridium-TT alloy for both the center and ground electrodes, providing exceptional durability and a powerful spark. The advanced design ensures consistent ignition, leading to improved fuel economy and reduced emissions. DENSO's commitment to quality means you can rely on these spark plugs for dependable performance across a wide range of driving conditions. Designed for easy installation, DENSO Iridium TT spark plugs are a direct fit for many vehicle applications. Upgrade your ignition system for a smoother, more responsive driving experience.