M7 Actuator Stabilizes the boost pressure at high-rpm range.Highly stable boost at maximum boost region can be achieved.Easy boost pressure setup using turn-buckle type adjustment rod.Bolt-on design for CZ4A Lancer Evolution X, R35 NISSAN GTR & GRB/GRF Subaru.In combination with additional M7 E-BC boost controller, it enhances the stability of high-end boost control.