the iridium's will last a good 70,000 miles or more. the copper plugs 12 to 15,000 tops, the copper are cheap at 2 bucks a plug. people with a good amount of mods run the copper for the most part. all stock stick to the iridium's.
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08-08-2013
the iridium's will last a good 70,000 miles or more. the copper plugs 12 to 15,000 tops, the copper are cheap at 2 bucks a plug. people with a good amount of mods run the copper for the most part. all stock stick to the iridium's.
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