Hello TT friends, I had my TTC 180 hp boosted by 35 hp today… Rüddel-Motorsport Duisburg (see also homepage). The car is now noticeably “bitter”. that turbo noise has changed. In short, it’s awesome to feel the power… 1.) Still consider whether I have to register the couple of hp or not?? Does anyone have experience with it? Should 116 € cost at Rüddel. 2.) Have had my long-life inspection done at A.T.U. With all guarantees. 250 €… Audi requires 400 €… spare i d there at the wrong end or does it necessarily have to be an inspection at Audi?? 3.) Does someone in the area Duisburg / Ruhr area know a recommended workshop, which supports me a well-sounding end pot??? D&W too expensive?? Which model (one tube) do you recommend me??? My goal is a horny sound… 🙂 I am a newcomer here and not a screwdriver, so please forgive my naive questioning. Thank you 🙂