The next generation of spark plugs. NGK is a pioneer in Iridium Spark Plug designer and manufacturer

– More Durability and a Higher
– Melting Point Than Platinum

– Better Center Electrode Anti-Oxidation and Anti-Erosion
– Improved Ignition

– Superior Anti-Fouling
– Lower Required Voltage

Sold in sets of 4 (four).

Note: Recommended for all EVO 9s with mild modifications

Stock #4901