Re: E 3 spark plugs
Have not used them...... however, I do know that they were tested against about 5 or 6 other manufacturers by Hot Rod Mag and they were surprised to discover that they were the only sparkplugs that they could recall that produced any improvement of any kind. I was surprised to read that because that category is always filled with unbelievable manufacturers' claims.
I can't recall if E3 showed gains in hp, tq or mileage but there was a measurable improvement.
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