I agree, don't get a B16 ECU because you won't have a knock sensor on your engine. The P28 is EXACTLY the same ECU as a P30 but it doesn't have the knock sensor board inside. With no knock sensor, chipped P28s and P30s are identical, so get a P28 and save cash. As far as the B20 VTEC goes, it's all about the Hondata program you start with. You're not the first person to run that engine setup on a P28, and it should be really easy to get a basemap program to start from.