Looks like you don't need additional guages, but you do need a monitor. So, Seedy, you could hook it up. From what I've read, it does not measure boost, but it does measure gas mileage, temperatures, RPM's, and other cool stuff that most people don't NEED to know. Personally, I may add one to my Kenwood media system just for the Fish function. Here is the site I found the best info.