After reading the XJ mpg article on another site I'm thinking seriously about buying the "Performance Distributors Firepower Ignition kit" for my 1998 Jeep XJ 4.0L.

I'm a little concerned about the additional size/heat of the spark burning a hole in the piston. Anyone heard of this happening to a 4.0L?

Also I've been sending PM's to xjtalk vendors asking if they sell this product. I certainly want to give our vendors first shot at selling this. If you haven't received a PM and you do sell this product either post here, or shoot me a PM.

I'm ready to pull the trigger on this product, as long as I don't get any bad news on it.