I have stock 2011 b8 a4 2.0 tfsi (other then an intake) and I plugged in an obd2 reader with a boost gauge to see what my boost levels were at. I am peaking at around 23.5-23.7 PSI which seems extremely high to me.

The reason I checked is because I hear a whistling sound under acceleration almost as if the boost is breaking up, which I think may be the stock DV but still it doesn’t explain why the boost is peaking so high. Any help would be appreciated thanks!