Bad Bowtie Posted January 14, 2007 Report Share Posted January 14, 2007 Has anyone had good responce from the newer Autolite XP iridium plugs in our H.O. 6.0L's? I was also wanting to know if the correct PN# is XP5245 for our trucks. Thanks again... Quote Link to comment Share on other sites More sharing options...
NoRiceInside Posted May 16, 2007 Report Share Posted May 16, 2007 NGK tr55 or tr6 modded :yup: Quote Link to comment Share on other sites More sharing options...
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