I remember that the first time I replaced the spark plugs I breathed a small sigh of relief. If I had to get 16 of the suckers, it was a good thing they were less than $2 a pop (Champion #RE14MCC4).
I just got back from the parts store. I asked for a set of plugs, he checks the computer, walks back and hands me 16 plugs in very pretty boxes. I didn't think too much about it until he told me my total was 120 some odd dollars! Come to find out the listing for the 5.7 is now Champion Double Platinum plugs (Champion #7570) that retail for $6.96 each!
So, did I miss something? Are all of you guys running the new double platinum plugs? $40 for plugs is one thing... $120 is something else entirely.
I mean, the stock plugs seem to work just fine. Is there some increased fuel efficiency or horsepower payoff that would justify the difference?