So, I finally installed my programmer today and the only thing I can say is, "love it!".
The performance modification I could dramatically see was the initial pickup.....but in return now I gotta run Super Unleaded. At this point, an extra MPG more or less doesn't make a difference.
By the way, If anyone is planning on installing this product, the manual says you have to pull a few fuses before programming. Ignore it!!!!! Following a conversation with their tech support, you only have to pull 1 fuse.....its located under the hood in the bottom right hand corner of the fuse box, called "info".
2003 White Lux, Alpine Nav/DVD, 3 Screens, Cold Air, Metal Dash/Mats/Steering Wheel, All SMA Chromes, Signal Mirror, Corsa Exhaust, JBA Headers, Diablo Programmer, Nology Plugs & Wires.