Depends on if he has the 40t pro evo, the earlier hubs can't have the freehub body changed.
When I spoke to hope I think they said any pro 2 evo can. Eds wheels are pretty new so he should be able too.
http://www.hopetech.com/11-speed-compatibility/
@edscoble
@skinny started
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Depends on if he has the 40t pro evo, the earlier hubs can't have the freehub body changed.