Here you go,
but I am not so brave to do it
http://forums.evolutionm.net/evo-x-engine-management-tuning-forums/455137-how-remove-120km-h-ding-dong-sound-warning-2.html
http://www.youtube.com/watch?v=UPUxzKWMXZg
If you are interested in Viewing live OBD engine data on your Android phone - Connecting to your vehicle ECU, Retrieve Fault Codes (DTCs) and clear Check Engine lights - View fault descriptions- Check the performance of your vehicle with BHP / Torque / 0-60 & Quarter Mile in REAL WORLD, let me know