Okay so, i've had 2 wastegate actuators go bad on me, by leaking, through what i figured was a torn diaphragm. Now i don't know much about the mechanics of a wastegate actuator, but i would figure if its got a diaphragm, it doesn't need a spring in there... i ordered the forge motorsport replacement this time instead of the ATP unit, and one of its selling points is the ability to replace the springs for different boost levels.... so does that mean the forge has no diaphragm in it, and is just a piston-type design?? I would hope so, because that seems as though it would be a far superior design given the luck i've had with the others.