If R35 GT-R's are legal in the USA why aint R34 GT-R's legal?

It could be that the R35 passed the DOT requirements and the R34 didn't. ---- http://www.cargurus.com/Cars/Discussion-c12047_ds539987

who says they ain't?

R32s, R33s, R34s are not legal except with a very few exceptions. As stated, R35s were built for US rules

I’m guessing due to th chassis type the safety regulations are not safe or its doesn’t have Thebes correct equipment for the states, that or the government don’t like the cars being faster than their muscle cars

R32s, R33s, R34s were not built to US NHTSA nor EPA regulations at the time of their manufacturing therefore they are not legal. The NHTSA has a 21 year ban on cars not built to outs regulations, which as of this month is May, 1997 and older are exempt but...; The EPA has a 25 year ban on cars not built to EPA standards, which is May of 1993, therefore the whole 25 year ban. You'll remember that '93s are the R32 models so happy hunting, have at it but stop jacking up the prices for no good reason.