the67fish
Well-Known Member
Well just when you thought spark plugs was spark plugs somebody comes up with this, Im thinking it makes sense, ok now who has an engine dyno to prove/bust this myth?
http://www.dragzine.com/features/se...-line-of-spark-plugs-gives-your-car-added-hp/
http://www.dragzine.com/features/se...-line-of-spark-plugs-gives-your-car-added-hp/