Carpet or Asphalt?
Foam or Rubber?
Stock or Mod?
Experience or No Experience?
If you don't know what you are doing then get the XXX-S because you are going to break parts and you can get parts a lot eaiser for the XXX-S. If you know what you are doing and don't think that you will break that much and you know how to setup a car then get the X-Ray EV0-2 with the C HUbs.