Liberty 4 seater - controller programming for added speed possible?

[fstop]

Have a friend who just took delivery of a new Liberty. I'm not up on what is possible with this controller, or if there are other ways to speed them up some.

I was under the impression that someone like Bob Boyce could reprogram the Elite lithium RXV controllers but not sure that is what is in the Liberty?

His cart already has 23" tires from the factory so controller programming is probably the only way to go.

Not sure what his battery capacity is as I haven't seen it yet (1.0 or 2.0 or whatever the ezgo nomenclature is) if that matters somehow.

Thanks for any help speeding this puppy up a little!