Akrapovic BMW K1300 R S EVO Exhaust 2009-10. Akrapovic Racing and Evolution systems are designed for racing-oriented riders who demand maximum performance. Both systems feature exceptional production quality, hi-tech materials and of course increased engine performance. Their quality and reputation are further augmented by the use of the high-tech HYDROFORMING production process to form the header tubes. Beside performance you will also benefit from great weight savings, up to 5.4 kg if compared to stock system. The change will be also visual as our HEXAGONAL muffler perfectly fit the exterior line of the aggressive roadster and add a clean racing image. We offer titanium or carbon-fiber muffler outer sleeves to satisfy each specific taste. Evolution system is made entirely of our exclusive high grade titanium while Racing system uses stainless steel header tubes and link pipe. Systems are not homologated and are developed only for race track use.