Are you ready for the price though ............ https://www.bmw-motorrad-bohling.com/bmw-akrapovic-exhaust-pipe-k1600gt-k48-k1600gtl-k48-euro4.html


The reason why I bought the 1600 when it first came out and still have one today, was precisely because it didn’t need anything doing to it to heighten my ownership ‘experience’.
the only thing I really did to mine was fit a calsci screen as I got a little helmet buffeting that I could adjust out of the standard screen.