Heat shields covering your headers and up-pipe, from the engine up to the turbo.
They like to come loose due to different metal expansion rates( some parts will heat up quicker than others)
check everything is tight,
I had that noise from tein suspension before.. The electronic damper motor came loose.
Also check you still have second gear, no teeth in the gearbox oil.
If it moves and it shouldn't then use duct tape.
If it doesn't move and it should then use wd40.

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Straya