Big gain in performance and response with our 2023-2025 YAMAHA YZ450F with the Vortex ECU from Dynamic Racing. This ECU comes pre-loaded with 10 "BASE" maps and includes detailed instructions and mapping guidelines to help you set it up and tune to your riding style. Brand new in the box, it’s ready to ship from our race shop. We only list items that are physically available in our shop, so you can trust quick, reliable delivery. As a leading reseller of Vortex ECUs, we also offer support services such as technical assistance, reprogramming, custom mapping, and in-house dyno tuning by appointment. All ECU's Ship in 1-3 Days. If you need something urgent, please message us! Model Specific Features Improved bottom end Power and throttle response Improved top end and over rev Power Power Ignition & Fuel Mapping Db assist to help meet Sound Regulations Traction - Start and Enduro maps for traction and throttle control Higher Rev Limits Advances Fuel Injection Timing for improved atomization and response Dual Injector Capable Multi Function Port - for adding, Vortex Map Switch, 2nd Injector or Speed Shifter - If required Advanced Launch Control Algorithms - tested by Pro Riders for maximum traction control Map Selection, Launch Control and DTC (Dynamic Traction Control) all activated using the standard Handlebar Switches Key Features Pre Programmed with 10 Performance Fuel & Ignition maps - all the work is done for you! Instant Plug in Performance (replaces standard ECU with no mods to wiring required) Fuel Trim Switches adjust fuel mapping by +12.5% to -10% in Lo , Mid and Hi throttle bands Adjustments require only a screwdriver and integrated switches provide visual feedback. Simple to install with mounting hardware supplied (where required) V-Boost - Programmable Voltage Boost Circuit for maximizing Spark Energy across the entire rev range Higher / Lower Rev Limit (where required) Robust design is fully encapsulated and O-ring sealed Diagnostic Flash codes - tests for sensor faults and flashes codes to OEM FI light Race Proven reliability Re Programmable (Software and Interface hardware not Included)