What you're looking at is an individual throttle body conversion, intended for use on a naturally-aspirated, high-compression motor. Also, there is no mention of the size of the new injectors; it is highly likely that you'd need to budget additional funds for an aftermarket fuel management solution.

It's overkill for a stock or mild GSR motor; the short-runner Integra Type R manifold is more reasonably priced and much less likely to cause a ruckus when it comes to emissions inspections.

(Speaking of which, where are you located?)