Replacement ECU unit will maximize the performance of your machine without compromise Designed for 4-stroke engines, the RX1 ProĆ is the perfect mixture of technology and flexibility ECU map provided will work with stock engine configuration and race exhaust Plug and play on standard engines and completely re-programmable this kit comes with 2 maps for racing and racing plus GPA "Traction Control" Level 5 Wi-Fi Com ready; allows you to fine-tune engine parameters such as injection, ignition and rev limit using a smartphone or tablet More overall power with improved throttle and acceleration response. GET RX1 PRO ECU YZF450