You will still need an exhaust manifold, piping, oil lines (feed & return), fitting for the return line into the oil pan, fittings for the oil feed so you can keep your stock oil pressure sensor, BOV (if you want one), boost gauge (if you want one), couplers, clamps, downpipe, and some kind of fuel management be it an EMS like Hondata or the conventional FMU setup. I would HIGHLY recommend you upgrade your injectors to some RC 440s. If you choose to go with the FMU setup, you should consider getting a VAFC as well so you can somewhat control fuel.

good luck man.