The Vortex X10 Engine Control Unit is a performance upgrade for Yamaha YFZ450R and YFZ450 X models from 2009 to 2019. It offers improved bottom end power and throttle response, improved top end and over rev power, better starting and stall prevention, higher rev limits, and fuel timing for improved atomization and response. It comes pre-programmed with 10 performance fuel and ignition maps, making it easy to get the most out of your bike. The unit is easy to install with mounting hardware included, and has a robust design that is fully encapsulated and O-ring sealed. Key features: Pre-programmed with 10 performance fuel and ignition maps Easy plug-in performance (no wiring modifications required) Fuel trim switches adjust fuel mapping in low, mid, and high throttle bands Adjustments can be made with just a screwdriver Includes mounting hardware (where required) Programmable voltage boost circuit for maximizing spark energy Higher/lower rev limit (where required) Robust design is fully encapsulated and O-ring sealed Diagnostic flash code feature for testing sensor faults Race proven for reliability Reprogrammable with software and interface hardware (not included) Upgrade your Yamaha YFZ450R or YFZ450 X with the Vortex X10 Engine Control Unit and take your riding to the next level.