Hello together, I don’t know where to go with the topic, so I’m trying here. I’d like to buy my water bike (Seadoo GTR 215 (engine: 1503 SC Rotax® 4-TEC® engine intake system…. Compressor with external charge air cooler, 60 mm damper flap)) a valve nozzle. In a water bike so-called water boxes are installed, through which the exhaust gases are guided. This water box dampens the soundscape through the invading water. Since the whole thing was too quiet, I have a co-operation with The sound is good and loud. A bit too loud in the long run, you can’t entertain yourself anymore and the WSP hears one already kilometers before. I’m looking for a solution now, I want to have the water box put in again and use a Y-piece with flap to switch between water box and stainless steel tube. Also solutions without water box can be discussed. I just want to between loud and le ise can switch. Do you have ideas? Best regards Tino