Experience more power and torque with the DENSO Iridium Racing elite spark plug. 0.4mm Iridium-Rhodium alloy center electrode requires less voltage to fire and increases firing performance. 100% pure Platinum 0.8mm ground electrode reduces risk of melting the plug during harsh racing conditions. As well as increased engine efficiency and fewer misfires, the Iridium Racing best demonstrates its performance improvement during acceleration.
