Spark Exhaust Technology BMW S1000RR "GP" Titanium Full Exhaust System (09-19). Constructed with a titanium silencer, titanium mid-pipe, and titanium racing header. Handcrafted in Italy, Ultralight approximately 2.8 kg. Dyno Tested for maximum horsepower increase over stock, sound 113 db. Non-Homologated Racing Version for Maximum Performance. For perfect performance, throttle response and durability, ECU remapping is recommended.