10s or even 12s on Tekno E-Revo?

At the moment i'm running 6s Tekno converted Revo which i'm pretty happy with
BUT.. i'm a speed freak n love the adrenaline rush so i'm planning to upgrade the power plant to 10s or even 12s (if i can find an ESC for it)...

Question is will the stock drivetrain of the revo hold up this amount of power? or do i have to replace it with something that will hold it together?

Also with this amount of power, i'll need extra brakes. Can i put a second set of brakes on the revo without touching the diffs?