I believe the ITB's aren't in equilibrium, earning the car working wealthy and building the vibration sound. The significant res injectors have a different clip to lower res injectors so you might need to purchase some new clips.Cheers... jondee86yea at this time I have 7mgte injectors in there now that https://4age-20v-itbs07268.uzblog.net/the-basic-principles-of-toyota-4age-for-sale-40996999