Anyone use a "Hypertech POWER PROGRAMMER III"?

[divorced]

http://www.hypertech-inc.com/programmer.html

Has anyone ever used one of these? Do they make a noticable difference in power? I will be lifting a 1996 Z71 with a Vortec 350 and 4L60E and adding 36's, so a little more power, speedometer correction, and improved transmission shift points would be cool. Would this programmer work well for me?

 

[ryan22re]

ive installed about 9 or 10 of the hypertech power programmers on 04-05 5.3l 4wd trucks.

no real difference in power, but playing with the shift points is the best feature (i think). plus the speedo correction is nice too.

the big difference is the one i put on an 04 lly duramax truck. wow.

ryan