The tuners are by SCT: http://www.sctflash.com
Both the original Xcalibrator (which I have) and the Xcalibrator 2, and the new LiveWire and so forth can be used with tunes by many folks. The later tuners are much slicker and easier to use.
I'm experimenting with some tunes I got here: http://www.rogueperformance.com
(a guy known as Fredness here on Ranger-Forums).
If you can pick up a used but UNLOCKED (important) tuner cheap enough, you can buy just the tunes and have the emailed to you believe it or not. That's what I do.