I've been running the superchips flashpaq for about 6 months now with no issues, got it from Northridge4x4.ca they have them for a pretty decent price, $50 to $70 cheaper than elsewhere I looked. Give stan a call, sure he has a few left.
Only real issue I had, was at temps below -30 if using the fuel saver milage program. the fog lamps wouldn't come one, as they cause to big of an amp draw.
My fuel ecomony went from 15.2 in the city to 12.9 and 14.0 on the highway to 11.2 over night just by using the flashpaq!
Hope that helps!
08' Jeep Wrangler
08' Dodge Avenger SXT (winter beater)
64' Plymouth Sport Fury(sold)
58' Triumph TR-3A(in 1,000,000 pieces)