iridiums and platinums are just a little more fuel efficient and last forever. coppers you get better performance but you have to change them out more often. takes less than 20 minutues to change plugs on these cars once you get good.
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04-10-2010
iridiums and platinums are just a little more fuel efficient and last forever. coppers you get better performance but you have to change them out more often. takes less than 20 minutues to change plugs on these cars once you get good.
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