Hi and welcome vx!
I bought mine a year ago, and quickly became bored with the torque curve; fast, but utterly predictable (like a big electric engine). Putting on a full exhaust system (which gets rid of the cat) made the bike a lot more enjoyable/aggressive, partnered with extensive dynotuning. Sounds nuts, too.
I put on an aftermarket quickshifter and launch control/race unit which increases the fun again, but I'd recommend talking to Todd Spiers on this site; he's one of the best flashers for this bike in the world, and is over in NZ. Don't get a power commander, as the ECU flash is much more effective and allows quickshifter functionality too.
I raced my bike last weekend around the track in Adelaide, and was keeping up with fully race-prepped bikes; Bkings are amazing when livened-up!
One side note: the bike's suspension is set hideously soft from the factory, set for about a 70 KG rider. Spend the $50 and get your local race bike shop to set the suspension for you (and levers etc at the same time, if you're not wrenchie).