here's the ruf conversion program for the boxster:
Boxster S - RAC Performance, Dallas, Texas
basically you take your boxster in for an engine swap with optional Ruf swag added on at the discretion of the buyer.
here's the optional ruf swag that can be ordered individually:
Boxster S - RUF Automobile - Online Shop
I would suggest that doing an engine swap myself, augmented with genuine ruf parts, is quite a bit different than a fiero trying to be a ferrari. but i'm willing to be convinced otherwise, which is why I asked. my gut has issues with it, but not sure why ...