Civic EG

Its a slow project but i wanna boost my z6, I was wondering if i should port match them or leave them alone. I swapped my z6 mani for y8 mani an the y8 is smaller. Any advice?

well when making power alot of it lives within the head work and port matching is a good idea id also do a mild polish as well... id port match it to the gasket head and the intake manifold......its like breathing thru a small straw or just through your mouth when running you know youll be able to be at your best when you are able to breathe less constricted....same w a motor

ok, Thanks.