I ended up selling my Wagon so all my goodies must go... Up for Sale is a Superchips Flashpaq 3865 bought it about five years ago and have used it in the past on my 2002 Dakota and then used it on my 2005 Wagon... It really is a nice tuner for the money... I used the 87 tune and ran 89 and noticed a small bumper in power.. I then ran on 91 tune and the increase was significant.. You do have control over Transmission shifting points and torque management.. Before this model was replaced it actually was pretty full featured.. I have included a link below that shows all the compatible years.. It is not vin locked and I just fully updated it this morning

Any questions feel free to ask!
http://ok4wd.com/superchips-flashpaq-tu ... gas-trucks
Key Features (depending on year, make and model)
Increases Horse Power and Torque
Adjust Shift Points
Adjust Shift Firmness
Adjust Speed Limiter
Adjust Rev Limiter
Recalibrates Speedometer and Odometer for different size tires
Recalibrates Speedometer and Odometer for different gears
Adjust Fan On/Off temperature
Reads and clears Diagnostic Trouble Codes
Additional Features
Easy Installation
Optimized Driveability
Improved Fuel Economy
No Tools Necessary
Update tuner to the latest calibrations for free via internet
Available Data Acquisition at Flashpaq.com