just want to ask y’all what is that thing with cables plugged into my turbocharger?

 

Is there a part number on it by chance it will help you look it up that way.

 

Old thread I know, but the plug with three wires is your oxygen sensor on the downpipe. Typically, modern cars have two. The first one upstream near the turbo in the downpipe and the second one is back by the catalytic converter. Their primary function is air and fuel mixture measurement.