Gapping Denso Iridium IKH20 for STS kit...
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In the STS turbo kit manual, it states to gap the colder plugs that came with the kit to .028". I purchased a set of Denso Iridium IKH20 (1 step colder) and I believe they come pregapped at 0.032". I have read that you should not gap iridiums since they can be damaged. Any suggestions on what I should do? Thanks
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I don't plan to push it past 390hp/tq, so the 0.032" gap will be fine...is that what you're running Athen? Why does sts recommend the 0.028" gap? What would the differences be between running one size to the other? ...Just trying to get a better understanding of things. Thanks for the help
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