The pre installed one is huge! Im assuming that replacing it with a tube shapped unit soldered to the motor is same? I got one used and it had been in a shaft drive car so i had to install new power leads to go into my buggy. I just did not want that large diode/board in my new wires so i used the motor mounted diode instead
I really wish ESC tech would get these along with caps installed with in the ESC case........... I know time will improve tech...
"Without Rules its just Backyard Bashing!"