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iridium plugs

  1. Wrenching - General Discussions & Tech Talk
    I changed my spark plugs yesterday and put NGK Iridium plugs in, I didn't need to change them I just wanted to see the difference in the regular plugs and the iridium plugs and I have to say I can tell a difference. It starts a tad bit easier and runs a bit smoother. It's not because my old...