OP is below here is a Comprehensive list Of Subaru Legacy Twin Turbo's by @telemekas
Joker was here!
at the moment i have standard vf20 primary and vf19 secondary which is a bit stif so may be on the way out
would a good upgrade be vf33 and vf32?
what are the differences between them? there isnt much info around for the Twin turbos i know that the vf26-27 are the best for top end just wondering how the vf33 and 32 compare
cheers