I agree with what Niznai has said, + 1 on that.
The parts on the xray are very strong and durable as well. Another good point is that xary is very sensitive with its adjustments, meaning that one change here, you'd notice it immediately on the track.
before, it was a great kit for carpet, but this year, it's great for asphalt too!!! 1 & 2 finish at the recent ETS finale
I'm lovin' my T4 '15