just need to know (90-96)

 

T25, and a tiny one at that.

 

Yeah T25 but the turbos are almost considered T2's.

 

its says .63 around the flange, so thats a t25?

 

While I've never actually used a Z32 T25, .63 sounds a bit off. Are you sure it's from a USDM 90-96 300ZX in the twin setup? By the way, that .63 is a housing A/R, and a very common A/R for T3's such as the ones used in the 84-88 Z31 300ZX single turbos, or even the single turbo VG30DET JDM Fairlady.
Got any pics? Where'd ya get it from?

 

t28, its a t2

 

it might of been from the single turbo vg30det i'll post pics up in a few