oh.. and it doesnt cost 10000$ to get it legalized. It might cost 10k to make it pass emissions, but you have to crash something like 6 of the same vehicle, or better put DOT (depart. of transportation) has to crash like 6 cars. This is to make sure that the car meets the standards of US saftey regulations. This MIGHT not apply for s13's and s14's since that chassis already exist here, but Im pretty sure DOT could care less, they probably just enjoy crashing hte car
so pretty much, to open the flood gates, so to speak, you have to be the first to crash however many of these cars. Or someone has to do it for you (just like.. I think its motorex that crash tested the first skylines so that they could import them)
No one that I know of has done this for a silvia, so just get a front clip, if you get it from the right people you can get guaranteed body panels and front dash..