I have a 2000 s4,,,6 speed....


I was told that the giac is one of the best..but then again apr...give me some insight!! pleaseee

 

they are both around teh same performance. GIAC is a little more aggresive

 

ya, a lot of people go with giac, and a lot of those who go with apr end up switching to giac. My suggestion is get the giac flashloader, so if u have a problem, you cna flash it back to stick before u go to ur stealership.