Originally Posted by HD81
320 awhp right? That doesn't sound bad if u just have a tune because I think xi's put down about 240-270 awhp depending on the dyno model.
I have more than just jb4, see my sig. I was very disappointed but I was told x drives are not dyno queens and put down the same power... With that said I wished I had bought the 335is with the n54 engine lol