[jhaan_dude]

this article talks about all the "stock" evo turbos that came with titanium aluminide wheels, not full titanium but you get the gist, and an article from Borg Warner talking about versatility in motors

http://forums.evolutionm.net/evo-eng...iants-20g.html

http://www.turbos.bwauto.com/product...Impellers.aspx