There is a video somewhere on this forum showing an ej motor with SIGNIFICANT movement under acceleration. I think it was in somebody's build thread. You will have to search. It seemed evident that not utilizing the dogbone mount that attaches to the top of the trans just behind the stock intercooler, as the kit is designed, allows too much movement. Your cam phaser would definitely hit even if your engine only moves half as much as the ej in the video. The motion to worry about is not engine vibration. It's the twisting from the drivetrain