But that being said, I'm pretty quick to admit, I'm no expert on VF turbo's, but I do know the ones that are capable of good power, generally still cost a good amount of money because those are GENERALLY of the STi's 2.5L, correct?
PS: 300whp is pretty awesome on a non-big turbo on a 2.0L subbie. Props on that one. Lots of people take for granted the driveline loss from awd in the evo, 3000gt, STi. Some of the fastest evo's from a stop would get destoryed by my srt4 from a roll ( and vise-versa, but worse, lol ), and it really showed me to make 300whp in an AWD car, its really is much harder vs a 2wd car.
The VF turbo$ u$e ball-bearng center sections don't they? I'm completely un-sure of which VF it was, but in my research I actually found two different wrx guys that had gone from stock 13T's to VF-series to a TD04L-19T and they both agreed they felt about the same on the topend, but the 19T did way better with response/spool. I remember reading that because at the time I was thinking "the 19T has less lag than a ball bearing smaller frame turbo?".
If I knew more about the VF, maybe that's a better choice? I wonder if it has an many inter-changeable options...