from reading more they also dont come with injectors, pump. tuning, etc. and there was something about needing a tubular "k" member too to clear components.
otherwise enjoy th 300 somethimg hp w/o fuel upgrades... and you still have to fork over for tune time yet.
this cheap kit isn't sounding so cheap anymore...k member, fuel pump, injectors, tuning unit, custom dyno tune, upgrade to good turbo