Extreme 400/Quazar Overvolt ?

Has anyone overvolted their Extreme 400 scooter ?

It looks very simlar to the Quazar scooter I posted pics of.

It is a 36 volt 350Watt scooter.

I'd like to make it faster.

Here's a pic of the controller ,

It says Electromotion Bicycle Controller
Voltage max 36 Volts Current max 30 A
Low voltage indication 31.5 +/- 0.5 volts:

Is this the same controller as on Extreme 400 ?

There is no way to open the controller as it is sealed with potting compound.