Iridium TT spark plugs offer improved horsepower and reduced fuel consumption0.4mm diameter iridium alloy center electrode0.7mm needle-type platinum alloy ground electrodeIridium tip is fully protected by a laser weldingReduced CO, CO2 and HC emissions due to improved ignition sparkBuilt-in resistor to eliminate electromagnetic noise interferenceLasts beyond 100,000 miles for ultimate endurance
Visit Product Page
