Your right, when we look at the 2.7L listings on sparkplugs.com ( http://www.sparkplugs.com/results_app.asp?productTypeID=1&AAIA=1375332 ), it doesn't show even one with a double ground electrode.

I just don't know enough about plugs to comment on the effect of using one like this. Awhile back, one of the S/C 4Runner guys was using a triple ground plug, but I never heard how that worked out.


Wheeling a Stepside Tacoma on 37s
Exploring in a T4R Ltd V8