yep, you'll only find b18c on the 94+ integras. you would have to wire up all the smog equipement from the year of the gs-r that you got the motor out of to be legal here in Ca. all you need is motor, ecu, tranny, wiring harness, all the related smog parts. there might be others too, someone feel free to add on. if your car is an automatic, its gonna cost even more since you have to swap in all the proper parts to switch it to stick.91int said:spikymike, are you suggesting any b18c would drop in nicely ? or does it have to be from g3 ?