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sparkplugs

  1. Charger Performance Mods - Engine - 5.7L HEMI
    Any body else out there use the E3.66 Diamond Head plugs? I bought them on a suggestion from a pal, who might be a former pal now. Puttin' them in was no problem at all. Then I took her for a little test run and got the exact same numbers on my GTECH. Then I drove her for a full tank and...
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