yup civic dx(90 degree bend) for the 4.0
civic EX (45 degreebend) for the 2.3/2.5 SOHC
either can work on the 3.0 depends on the TB location.
the 2 vacuum hoses can be discarded, but one of them ahs to be plugged.
you will also need a MAF adapter and another 3 in rubber hose adapter.