Finally found the time to do the tone wheel mod. Noticed the engine idles smoother, expesially when the a/c is on. Throttle response does seem better. Seems like it takes less throttle for the same road speed. Havent really noticed a difference in EGT, maybe that will change as a havent really driven the truck much since doing the mod. Im getting ready for a 900 mile road trip over the weekend so Ill have more to report as per mpg increase (if any). Definatly seems like its worth the cost ($.oo) and the time invested (45 min) any other free or low buck mods? thanks