This High Voltage ignition coil "40,000 volts" is a problem solver in many ways. First if the new ethanol blend fuels have slowed your flame propagation down to the point that performance is an issue then the extra "Fire" that this coil will throw will be worth every penny. Second, if hotter spark plugs are not available for your application this coil will more than make up the difference in extra "Fire".  The feature we like the best is that the "Flame Thrower" decal on the coil frame is easily removed so that the coil has the same look as the original equipment.