hey guys i'm thinking of buying a 90-96 300zx and i was wondering what the difference is between a 300zx 2+0,2+2, and a twin turbo is?

the 2+2 is a "four" seater and is non turbo (at least in the U.S.)

'90-'96 (also known as Z32) came in three configurations. NA (w/o turbo) is available as a two seater (2+0), four seater (2+2) The twin turbo are only available as two seaters.