I think Robo looks good, and his engine his amazingly smooth. But I thought that he was too quiet! He has bite, but no bark. And this is the bark that I think he needed. An Akrapovic full exhaust system. It costs around 600 KD for this full exhaust system, but you could get the slip-on for 200 KD for the sound without the performance. Akrapovic is one of the higher end exhaust system that you can get on the market, and they just came out with the new Evolution line and I thought it fits with Robo’s attitude so I went for it after looking around at whats available. Usually manufacturers aim for the Japanese and some Italian, but not everyone makes exhausts for BMWs. Cant wait!