Quote Originally Posted by slick2500 View Post
I was reading one mod guide that says the first thing you should by is a scan tool or a tuner with a scanner, that way you can watch your KR.
I got in an argument on another forum about this a few days ago. Personally I don't think you HAVE to get a scanner until you are ready to drop pulleys such as getting headers and a CAI first, but that's just me.