Description:

No-compromise, top of the line rspark plug for the most serious enthusiast. 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. Model # IRT01-31 Features: 0. 4iridium center electrode: worlds smallest diameter that maximizes firing potential 100% platinum ground electrode Burnished nickel plating for superior corrosion resistance Item Dimensions: 5" L x 1" W x 1" H.