I'm thinking of swapping out my b18b motor for a usdm or jdm b18c1. I have a aem short ram, dc 4-2-1 header and Greddy sp1 exhaust. i'm guessing the intake cannot be reused due the different intake manifold not accepting the intake Pipe I have. I should be ok with the header though, correct? I'm guessing the exhaust I have should be alright, but what about the o2 sensor? I also live in California, so I have to pass smog every two years, so I have to make sure that the swap is smog legal. What year motor and tranny should I get? I'm guessing I should try to find an obd1 swap including motor, tranny, ecu 94-96 gsr? What else? Thanks in advance!