i have here a superchips tuner that i paid $425 around. & now i have no use for it because i sold my truck. im asking $250 obo. its for any GM gas truck/suv from 96-03. you guys can look it up on google or something & check out its great features, it has alot of very useful ones for towing perfomance & gas saving! even reads DTC codes & resets them if you choose to, i kept doing that on my truck without ever actualy fixing it the service engine soon light came on & it was a air injection pump. the light kept going on every 5-10 or so miles because i never fixed it. i live in la puente, ca 91744 my # is 626 330 9812 just leave a message if no one picks up. my name is diego or email me @ v12revo@yahoo.com