I am looking for an inexpensive, quickly portable OBD-II port 'tuner' for my two LB7s. Code reading, clearing, tire size mods, etc. are as important as occasionally applying a 'hot' tune for a truck pull, then removing it for daily use.

Hot Xcelerator or Duramaximizer are both available for cheap when purchased used. Hypertech and DiabloSport appear similar. Trying to decide. Any thoughts? Either one easier if stacked with propane for a truck pull - i.e. more aware of transmission slippage?

(Don't worry JK, I know who to turn to for my LLY and LBZ...taking things in baby steps here so I can learn what the rest of you have learned over the last 5 years...)