u jsut cut it and hook each end to an end on the bc..heres how it works (makes it easier to do"

!!this is all "easy descriptions" so dotn flame me~~

vaccum line measures vaccum/ boost

goes from intale manny, to turbo, tells turbo when too much air is being forced in and stops turbo from boosting more..

u put bc on there to lessen the flow of air to trick ur turbo to think tis not flowing enough and to flow more, hence more boost, the controller jsut makes it harder for the air to get through make ing the reading lower.