Denso IK20 Spark Plugs.
09-15-2003, 09:22 PM
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Denso IK20 Spark Plugs.
HI, just purchased some Denso Iridium IK20 for my 5th gen based 'lude, read and searched, but unsure about gapping, I was @advance auto, and i was informed that u can gap it w/the regular tool, but i've heard somewhere else, that there's a SPECIAL tool to gap denso iridiums, all heard, not verified. What's correct? maybe it's already pre-gapped and I don't have to do nething at alll...any help is appreciated. If done correctly, i'll post the performance of these plugs. thanks.
