If your buying a complete swap, it should come with all the necessary sensors and ECU. Just wire up Vtec, and possibly the Knock Sensor. B series Axles, Engine mounts, and Shift Linkage are also required.

Why do you want an overpriced B18C5?

Edit: Snoopy answered you in the thread you made yesterday. https://www.honda-acura.net/forums/s...d.php?t=272355