After my plug change debaucle on my 2003 GMC Envoy, I now have a set of 8 very lightly used NGK (7397) TR5IX Iridium IX spark plugs. My Envoy did not like these in the least and wanted AC Delco parts, go figure. These plugs have around 100 miles on them. I'm looking for $35 shipped for the set of 8.
Thanks, Bruce
