a vacuum activated valve after the turbo and before the intercooler (on our cars thats where its at
A valve that enables water to be diverted to a different direction than normal. Used to bypass some part of the filtration system.
Valve that allows flow to go around a system component by increasing or decreasing the flow resistance in a bypass line.
Same thing as a BOV, only the air isn't vented to the engine bay, it's vented to PAST the throttle body. Not only does it not make a noise, but it's needed for cars using a MAF sensor, so that all "air in the system can be explained" Cars that use MAF and BOV's stutter/stall when the BOV goes off.
The bypass valve, used to bypass some part of the filtration system, enables water to be diverted in a different direction than normal.