Bro if you really want more fast bro replace 80a-120a 2s-3s ESC..my 16103 pro im use 80a ESC 16101 pro im use 120a ESC..but bro also need program card for setting too..now the program card is so cheap already...im buy Hobby Wing RM45.00 malaysia only...wish bro the car onedays will be more faster...😇God bless you bro..have a good day..