Looking for new plugs, and think the TR55's are the one. There is a new tridium plug, is it worth it? And do you have to gap the plugs, or leave them at the preset gap?

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mfarris@flightmedicmail.com

 

You mean the iridium plugs right? The reason they're more than the copper plugs is because they'll last a lot longer than copper. The copper ones will last you about 10,000-15,000 miles and the iridium will last you 50,000 or so. It just depends on how often you want to change your spark plugs.

As for the gap, they should come pregapped, but it's always a good idea to check that before you put the new plugs in.

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1997 Bright Red Z28
A4, 3.23's, K&N FIPK, FLP Headers, Flowmaster, Cutout
My Z28

 

Yeah, I meant the Iridium, I was really tired when I posted that--My bad, but thanks.