I have recently purchased a 2000 Civc SI. I am looking in to building a motor for it. My plans are to build a B16A2 for and be able to put it directly into the car . Someone suggested that swap in a B18, will i need to get different motor mounts?? what is the difference in the engines besides there liters. what is the horsepower difference? What else will i need to swap a B18 into the car that had a B16 in it originaly(ECU, wire harness, axles)