I was looking to buy a tuner to support some lite modding. (Intake, pulley) and was curious...

They are ALL over Craigslist. Same model as what we would be buying for our own use. Are these programmed for specific vehicals only? Or are they multiple ones?

Meaning - If I buy one that someone used on a raptor, or mustang, would it have canned tunes for our 2003 HD F150's? Or are they ONLY 3 tunes for specific vehicals?

This would help me determine if I need to break down and get one new, or not.

Also it may help me determine if I should just go get a dyno tune instead.

Thanks guys! You rock!