What is this noise?

[SirJaquan]

Courtesy of google AI

Here are some ways to check for leaks on charge pipe couplers:

• Boost leak tester
  Pressurize the system without starting the car by removing the turbo inlet, attaching the tester, and connecting it to an air compressor. Then listen for leaks or spray the couplers with windshield washer fluid and look for bubbles.
• Soapy water
  Run the engine while spraying soapy water on the couplers. The air pressure and soapy solution will cause bubbles to appear if there's a leak.

Figured it out, it was the couplers from the turbo down to the intercooler. Thank you very much.

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