(WSBK Evolution 23 - Updated 2.0 System) Full Titanium Ducati V4 S/R exhaust system from Spark Exhaust Technologies is available as used by Eugene Laverty Direct from World Superbike Racing with Team Go Eleven where it helped produce an output of over 250 horsepower. Spark designed the exhaust in collaboration with the University of Modena "Enzo Ferrari" Engineering Department which helped create a multitude of simulations required to find the exhaust design yielding the utmost power output and performance. It's light as a feather using aerospace grade titanium and special alloys with a total weight including all mounting hardware of only 8.04 lbs. The fit and finish of the exhaust is unlike anything you have ever seen, it is beautiful and a technological marvel. Team Go Eleven evaluated and chose the Spark exhaust that was dyno proven and confirmed as the most powerful V4R exhaust for the Ducati superbike even over other offerings from top competitors. The V4 S/R Ducati exhaust features two "Grid-O" style titanium silencers with mesh screens, manifolds are 3D printed in super alloy Inconel (oxidation-corrosion-resistant materials well suited for service in extreme environments subjected to pressure and heat) and includes a carbon fiber heat shield. Handcrafted in Italy. For perfect performance, throttle response and durability, ECU remapping is recommended. Race headers each have an O2 bung hole on each collector (1-2-3-4). *Does not include removable DB Killer. *Not compatible with original fairings or passenger footpegs.