Installation process is a little tricky unless your hands are the size of a two year old child. Lol! I pulled the entire intake manifold assy after first removing the throttle cables and injector. It’s easy to assemble the new intake halves and seal once you have everything laying on the bench. Then the whole unit can be fit into place as one rather than doing the intake assembly in the confines of the small area on the bike. I’m pleased and impressed with the quality of the end result!