Hey guys, sorry if this is a dumb question but I'm not too familiar with the electric system in a car so I was wondering if the iPhone REV app would work on a 91 Trans Am. I would love to get this for my ipod touch, but it says that it needs an OBD-II port... which I'm assuming my car doesn't have but I'm wondering if there's a way to possibly convert it?

http://www.devtoaster.com/products/rev/

 

I seriously don't think it's worth it just for the app but if you do, the ls1 pcm is much easier to tune so it isn't a terrible idea either.