OldSkoolGP Posted October 10, 2005 Report Posted October 10, 2005 In my Lumina's 3100 I used those new AC Delco Iridium plugs, and they rock. Mileage went up as soon as I put them in and it stayed up. If you go to Advance Autoparts or Krager or whatever they call it out y you, they can look it up. They're $5 a plug, but it's worth it. Quote
19Cutlass94 Posted October 10, 2005 Report Posted October 10, 2005 I need some new plugs soon, I was juts going to go with the regular Delco plugs, but if you guys say those rapidfire 8's are as good as they are, I think I might have to pick them up, and try them out. Quote
OldSkoolGP Posted October 10, 2005 Report Posted October 10, 2005 Rapidfire 8's are awesome in a 3.4, but out here they're getting harder to come by. I have 6 brand new ones in box that I haven't used yet. If you get some, be sure to get the platiunum ones, they're even better than standard 8s. Quote
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