99 SLK230 SPORT
ok i see the hose that goes into the supercharger but what is the hose thats coming back to the air box from the pressure side of the supercharger? I assume it would be a Diverter Valve(pressure relief) but there is a electronically controlled butter fly valve.... so what is that?!
how can I get the PSSHH sound out of it? 
how can I get the PSSHH sound out of it?