BMW going to add that turbo spool noise in the ASD soon. Hahaha.
Any request how loud? Mention it and cross the finger that they will read it and put action into it.
Subaru WRX type, Mitsubishi EVO type, Toyota Supra type, or ??
Maybe even bring back the diverter valve that enable you to dump the excess air to atmosphere instead back to the engine air intake system?