I'm generally no big on botique spark plugs... for one plugs like this generally don't have a high enough capacitance to make any real world difference and the temperature ratings for them are usually way off (typically they're hotter than they should be and lead to detonation issues). If you want to try them, by all means, do so, but you would be better off saving for an actual capacitive ignition setup.
If you're stock.... forget both and worry about bigger things.
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