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Title: Works well
Review: First of all, I'm not sure if you are supposed to gap these or not, when I tried, these scratched the gaper.Nontheless, when I replaced my old worn out spark plugs with these (there was a huge gap difference, these are much smaller), I got a good 2 extra mpg that I was looking for in my Honda Prelude. (from 18mpg to 20mpg) I haven't noticed too much of a difference in the acceleration though.
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