Hello, I’ve just installed a new PopOff valve from Bailey and I’m really excited. It’s going great and sounds pretty extreme I’m going to create a soundfile in the foreseeable future. It’s a two-piston valve, so there’s no danger of the wrong opening.http://www.vahrenwalder.de/thread.php?… looks here in the forum, but it’s about Opel’s *g* but it works in the TT, there’s only another spring in it, but that’s not built when you say that. . for 179€ you can get this at gema-motorsport, a blind plug is included, the insert kit does not need the TT. The homepage has not yet listed this new valve.. simply write email. I have not yet made a Kennfeldoptimierung, but then it becomes even louder. if you do not like to notice it so much, then let it with the valve however I had to shorten or replace the thick pressure hose, since the original is totally mist. many krürü There was a great loss of pressure before it arrived at the valve. I didn’t want to believe it either, but it seemed like a miracle. Greeting Holger