Spark 2009-2019 BMW S1000R Konix WSBK Evolution Full Exhaust System is constructed with a titanium silencer, titanium mid-pipe, and stainless racing header. Handcrafted in Italy. Ultralight approximately 5.5 kg. Dyno Tested for maximum horsepower increase over stock, sound 108 db. Non-Homologated Racing Version for Maximum Performance. For perfect performance, throttle response and durability, ECU remapping is recommended.