Basically brand new Quadzilla Adrenaline with pulse monitor for a 02', but have heard you can buy adapter for any year 1999 to 2002. I have uploaded customs tunes to it and ran it on the truck for 2 weeks before i sold the truck to a friend who couldn't afford the chip....I paid $850 for the setup new and would like to get $550.00 for it, but offers are more than welcome.