Does anyone have any experience with aftermarket ignition systems like the ones made by Jacobs and MSD?
I'm mainly looking for info on the pros and cons of installing one of these on my '99 4X4X4dr. The advertisements talk of power and mileage increases, but how realistic are they? Anyone have an estimate for the time to break even with fuel savings?
I was also thinking of matching one of these systems with a set of the Bosch Platinum+4 spark plugs, but I do wonder if the higher spark voltages tend to eat the plugs. Of course neither manufacturer mention anything on this topic....
packrat