Laptop Monitoring/Tuning Software
 

I was at the sheid show in Terre Haute a couple weeks ago and saw a guy with a laptop on his center console of his 08 6.7L it looked like it had a bunch of gauges and what no on his screen that was monitoring his truck status.

Where can i get software like this? How much is it? I dont even know where to start, dont know what to compare cus i've never seen anything like it other than on movies and such.