[gtrookie]

So I'm looking into getting a tuner, and I think I've narrowed it down to the SCT Mustang XCalibrator 2 and the SCT X3 Power Flash Tuner. I was looking at DiabloSport, but AmericanMuscle.com is offering a special where you can get free tunes for life on SCT tuners if you order the mod from their site. Seems like a good deal (I could be wrong) since the SCT is only $10 more. Now my dilemna is that I don't know which of the SCT's to go with. What's the difference? Which one would be better? I have a stock 99 gt and I'm looking for the best gains in hp.
Here are the links:
SCT Mustang XCalibrator 2 Tuner (96-08) at AmericanMuscle.com - Free Shipping!
SCT X3 Power Flash Mustang Tuner - The 3rd Generation SCT XCalibrator Handheld

 

[stlwagon]

Get the X3. The Xcal2 is slowly being phased out and the X3 does have a few more features and more storage capacity.