where turbocharger specifications have already been optimized

but then the factory designed kinematics wouldn't work as it supposed to

Premium Turbosmart Quick Release Barrel Hose Clamp -  3

equipped initially with vacuum-based Internal Wastegate Actuators

WG60 GenV Powergate 60 7psi Black Turbosmart where turbocharger specifications have alreadyThe Gen V WG60 Power Gate60 external wastegate is a cost effective, high performing 60mm external wastegate, the largest in the Gen V range. The Gen V provides extensive user configurability, world leading extended thermal performance, fatigue resistance and best in class flow performance for optimum control and longevity. A direct fit upgrade to all 4th generation Turbosmart wastegates and feature our unique collar locking system, variable actuator