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Iridium Spark plugs

15K views 9 replies 5 participants last post by  Kaw'ee  
A test was done years ago about the iridium plugs... end result was, stick with the plug the vehicle was issued with. Iridiums threw the timing off on the vehicles that came with different plugs due to the iridums firing faster than the other plugs. With one cylinder and minimum hp, I see no benefit.