Miata Mailing List: November 1992, Message #23
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   From: (none)
Subject: Platinum plugs
   Date: (none)




I just bought a set of Platinum plugs for my wifes Miata.  Anyone try these
yet?  When holding them up to the champion plugs they cross-reference to, they
seem like they protrude into the combustion chamber a shade more.  I haven't
yet compared them to the original plugs cause they're still in the car.  I
think the originals are NGK plugs though.

Anyone notice any performance (or other) difference with the platinum plugs?

Dave