it dont matter if u shorten the arm lol if the turbo is connected direct to the actuator its sending full air preasure to the autuator makeing it open the less it opens the less the wasgate open the more boost it runs with a amal valve u have the third pipe going to the air box is were all the access air gose wen the valve opens making the car run more boost same with a bleed valve but only thing with that is u can set ur own boost