My car thinks its a turbo!

So recently when driving my 197 and pressing the clutch to change gear I'm getting a whistle/dump valve sound!

It's definitely coming from the engine bay from what I can tell.

As much fun as it is pretending I'm driving a turbo anyone else have anything similar??? Lol
 
Is this at high revs? If so it's a common thing and nothing to worry about, there's a few threads on here about it. :smile:
 
When mine was cold it used to make a pop noise from the exhaust. I loved it! Best thing about the cold start was the noise it made.