The all-new Slip-On Line exhaust from Akrapovi for the Yamaha R1 features the(r)evolutionary new-shape muffler design. Developed from a concept, its manufactured with the highest-quality carbon fibre and incorporates titanium parts to make it lighter than stock. The Slip-On Line is the first step in motorcycle tuning. The Slip-On Line exhaust from Akrapovi will change the look and feel of the machine, while offering agreat exclusivity.