Hey Jörg, I'm very happy with the Arrow. It's a very good alternative for the Akrapovic and a little less expensive (€600) And it sounds good. The dB killer is still in there. Untill now I haven't removed it yet. I'm very curious have it sounds like without. Maybe I should try it for once :)
Thks for the vid, it helps to figure out how it sounds. By the way, i see you use your Phone on the bike, quick tip to use your BMW stand with no screw nor any electric plug...so relevant simple and cheap 👍👍👍 OTILLI Support de navigation USB pour téléphone portable - Pour GPS R1200GS R1250GS F650GS F700GS F750GS F800GS F850GS ADV F900R S1000XR CRF1000L avec deux ports USB amzn.eu/d/iXomtFB