Well, you'll need a complete pedal assembly from a manual DA Integra, along with the clutch cable and shifter mechanism. And of course the correct manual transmission. Again I'd look to the DA Integra.

Generally speaking, I tend to question the amount of time and effort put into a auto to manual conversion. If the car is otherwise stock (or near-stock), it's probably cheaper to find a comparable car that started out life as a manual. h:

My 2.3¥