They sell lots of replacement parts. http://www.cabrinhakites.com/switchblad
Its a little hard to tell by the picture but if the description is correct then item P on the diagram may be what you need to upgrade.
However, I did order a set of 2013 lines and they ended up being exactly what was on my 2012 kite even though the part number was different so I'm not sure that all the spare parts are necessarily going to end up being 2013 stuff at this time. Ask your local cab shop to help you get the parts and they may be able to help.
The upgrade will probably be pretty expensive though since it is Cabrinha and you won't be finding it on clearance anywhere. Consider the price of the part you need + the price of the lines and you're probably at the cost of a new complete bar. Might be worth just going that route considering if your bar is a year old the lines are probably stretched and worn anyway.