Need help identifying circled part in 2009 CX-7 2.3 Turbo

I need help identifying the circled part in a 2009 cx7 2.3 turbo. Has a vacuum line attached to it. The mechanic broke it, and instead of replacing, he just plugged the hose. Any help is greatly appreciated.
 

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That is the bypass valve to release pressure when your throttle plate closed so the pressure doesn't force it way back and damage the turbo. I would recommend getting an aftermarket one. Same as a Mazdaspeed3.

Link to OEM one on Ebay.


Here are some aftermarket ones. You can get it used they usually don't go bad and you get that blow off valve sound from turbo cars.



 
Thank you very much for this information! Pricey part though. Any thoughts about purchasing a used one from a salvage yard?
 
Thank you very much for this information! Pricey part though. Any thoughts about purchasing a used one from a salvage yard?
 
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