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Re: Re[2]: IA prices

  For ur-Qs, the difference between Stage I and II is the
  reduced amount of retard as a function of boost with
  the Stage II. I think a slightly stiffer spring might also
  be supplied with Stage II, but the boost cut-off point
  in the CPU remains the same, I believe. So, you can
  get the extra boost of Stage II by adjusting the WG
  to increase the spring tension, but you need the
  extra advance of Stage II to get all the extra HP.