The Leo Vince fast system replaces the existing ignition system. Complete integrated system specific to each bike. Kit this made up of: electronic Control unit with aluminum body,  special Wiring, rubber Support, a CD and 3 different maps. The maps offer 3 different settings: stock, low-end torque and race. Systems are designed to run specifically with Leo Vince X3 full system or slip on kits but also run well on other systems.