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Title: Best spark plugs ever made!
Review: These are the by far the best spark plugs ever made. This is my 3rd set I've bought. I have installed each set into 3 different vehicles. The first was a 1993 Dodge Dakota with 5.2L V8 at 13000 miles and gapped once. They were still going at 115,000 miles. The second vehicle, I installed in a 1999 Dodge Durango 5.2L at 85,000 and gapped once, still going at 136,000. The third is a 2006 Dodge Durango 4.7L V8 at 66,000 miles and all three vehicles saw about a 2 MPG increase in mileage and a noticeable increase in power. I just wish splifire still made these.
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