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Old 05-14-2013, 06:28 PM   #1
Killa B
3" Exhaust
 
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Default Iridium Spark Plugs?

Im about to do a tune up on my 89 NA ive noticed a lot of guys on the forum say they run iridium plugs but on the horizontal pillar in front of my radiator there is a warning label from Toyota saying to only run platinum tipped plugs? I don't know much of the difference between the two im guessing its just a different type of tip. Will it not hurt to run iridium plugs? I just want to get the best materials to do my tune up.
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1989 na turbo supra ~ 3ARacing exhaust 2.5" pipe no resinator, sports package
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