What is a good programmer for a new body style Chevrolet z71?

[MisterYaunt]

i want a programmer that will do the most for my truck (make it faster, quicker, better mpg, etc...). Can yall telll me a good brand and tell me what it will do for my truck?

 

[Cliff]

i like the powertech programmers.
and i have yet to find a year of modern computerized vehicle they dont make one for, or wont start making one really, really quickly for.

if i knew which year and specific model of silverado we were talking about, i'd happily provide a link to it and a COMPLETE description of what it allows.....