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Yup, careful removing the coil pack, boot can attach itself to the old plugs and rip off. Upon reinstall, use dielectric (silicone) grease on the boots and new plugs to prevent future issues. Use the dielectric grease on the coil pack electrical connector, and really every other electrical connector you touch down the road, except O2 sensor connectors will fail it, everything else is good. Get a little grease on the electrical pins AND the rubber gasket around it or purposefully be sloppy on the edge so the grease will get onto the oring when plugged in.

Silicone greases are very compatible with all types of rubbers (o-rings, gaskets), except silicone itself, so use it as a o-ring lubricant as you see fit. I love silicone grease, operating temperature range -40 to 400F.
 
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