I am thinking of getting a tuner for my '06 GT. The only mods I have are Corsa mufflers & K&N Aircharger CAI. The only other mod I am going to get is pulleys. Which tuner do you guys recommend? I want to tune it for premium fuel, and, of course, be able to read & clear codes. I am looking at the Xcalibrator 2-is this a good choice? I'm kind of "old school" (I'm 60) and haven't done anything in the computer end of an engine. Can you help an "old brother" out?