3 things you can do is 1st if it has a stock controller upgrade it 2nd is a PQ motor and 3rd is either 4 or 2 gage wires thurout the cart.........other than that its an upgrade to a 48 volt cart and still a controller and motor and wires, but since its a 36 volt cart as long as its already a controller cart you can get there without going to 48 volts cause than your talking a lot more money........if the lift was on it when you bought it theres a chance they might have changed out the stock controller ( saves you some money ) .............anyways this is the best way to get both speed and torque................................