Akrapovic Megaphone Slip-On Exhaust Suzuki Gsxr 600 / Gsxr 750 Features: A new generation of mufflers based on the design of Akrapovic Racing and Evolution line exhaust systems using state-of-the-art materials to provide top-flight performance, the lowest possible weight and the highest production quality Conform to the strict EU regulations for street use and satisfy all conditions for exhaust system noise levels and safety Approved by the technical standards board for each specific type of motorcycle, which is indicated by a stamp of approval on the muffler Noise levels are lower, but the recognizable Akrapovic sound is still there