Akrapovic BMW R 1300 GS / ADVENTURE 24-26, R 1300 R / RS 25-26 Slip-On Line Exhaust (Titanium) - S-B13SO4-HJGTBLAkrapovic R1300GS Slip On Titanium System B13SO4 HJGTBL Developed exclusively for the BMW R 1300 GS from years of experience working with the BMW GS range and its boxer engines. A double flow muffler constructed from lightweight titanium and a handmade carbon fibre end cap gives a weight saving of 9. 3% over standard stock. Created for improved performance and enhanced sound silencing, which mitigates the impact on the environment, whilst delivering a