ok, well i've been debating on whether to go with a b16 or a zc. but im leaning towards the b16, so now my question is what year of the car should the b16 come from? because i am totally confused about all this obd0, obd1, obd2 and so on...for a very easy swap in regards with the wiring what year should the motor be and from what car should it come from? but if i go with the zc do i just get the engine and use my si tranny thats already in the car?? and do i use the same ecu?? if anyone can clear this up for me it would be great.