Motorcycle and Car Performance Accessories. Rapid Bike EVO Fueling Module BUELL XB12X Ulysses (1200cc) 2008 – 2007. These Rapid Bike EVO are designed to fit model years BUELL XB12X Ulysses (1200cc) 2007 2008. Rapid Bike’s modules utilise the lambda sensor allowing for a drastic improvement of engine performance and fuel efficiency across the entire rpm range, especially in the closed loop section. All kits come with wiring harness and instruction manual. EVO: With auto-adaptive technology the map is constantly adjusted while riding the vehicle. Rapid Bike EVO add-on module puts in your hands total control of fueling operations as it is directly connected to all stock injectors (up to eight) while managing at the same time the corresponding air/fuel ratio. The ability to manage stock lambda sensor signal allows performing the exclusive auto-adaptive feature to secure that fueling is constantly adjusted while riding the vehicle. The injection map becomes a dynamic value in order to match the changing weather conditions and driving style. This function is highly beneficial at low and medium rpm where the engine performance is poorly limited due to more and more restrictive anti-polluting regulations. RAPID BIKE EVO TAKES THE BEST OUT OF YOUR BIKE! Rapid Bike EVO supports quick shifter sensor (optional), multiple maps management, raising RPM limiter (up to 1000 rpm) and the elimination of speed limiter. For twin cylinders engine equipped with double lambda sensors, it is possible to develop a specific injection map as well as an auto-injection remapping set specific for each cylinder.