Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
programmers basically allow to change the parameters in the computer, ie change shift point and pressure, adjust for different tire sizes, change/delete speed limiter. Programmers come with canned tunes, tunes aimed at mileage, 87 gas performance, 91/93 performance, towing etc. the programmers can be tuned with custom tunes using a dyno etc. im sure more will be along to add to or change some of what i said.

Thanks guys that helps a lot
Where in GA are you? I would give the guys at PHP a shot before anyone else. They will provide you with the best info, and can even dyno tune for you.
http://www.gopowerhungry.com/
Waiting on them to finish up the custom tunes for my Gryphon CTS now. Will let you know how it turns out....
I noticed in your Sig you have an 03 ? That is the same as mine . I had a hard time finding a nice tuner for the 03. For some reason most tuners skip the 03.I ended up going with an edge EVO HT. It does not have A live display but it was only 349 at summit racing. I am thinking of doing a review on it once I get a few tanks through it. Right now I am still on the first tank.
I am about to order the Edge HT I think it is for my 05. Ill see how well it does.