as long as the parts are street legal and meet the emission reqiurments it should pass. (but wheres the fun in meeting those standards)
its a pain, switching back to stock is your best bet
ok a better awnser for what i said is it must have all the original smog equipment that came with that car still on the car and in working order. and it must be street legal according to whatever state you live in. and with the newer cars they pressurize the fuel system as well as check the emissions (at least they do here in cali) so make sure your stuff is air tight.