the thread clearly states "wastegate actuator". Nothing was said about a bypass valve and Im pretty sure everyone knows how bypass valves and wastegates operate, especially since they operate on opposite sides of the turbo. Hey Pat, it is a good choice to get a boost gauge to monitor your boost level and detect an overboost condition if it ever occurs. It will also let you know if you have a vacuum leak of some sort if your car is acting funny. Unfortunately, Im not too familiar with MS3/MS6 motors, so I can't help you too much with the install. Maybe emailing Sam at crossover auto can help and give you some detailed instructions. Although these cars can take a beating better than the MSP, you should still start modding with other bolt ons before upping the boost. Intake, turboback exhaust, tuning, motor mounts, and possibly a FMIC can change these cars a lot.