Stay away from so-called performance wires with solid wire cores, or any non-suppressor wires. All you will get is radio frequency interference and a large pain in the posterior. The interference can also affect the ECM, and many of the aftermarket wires will also affect the Delphi Ion-Sense system that is part of the ignition. That system detects detonation and signals the ECM to adjust ignition timing to eliminate it. Significant changes to the resistance of the wires (or plugs) can negate the ion-sense, or cause it to send bogus readings to the ECM.
The best approach on an EFI bike is to stick with the stock wires. If you just want a different color, try an internet search for colored sleeves that can be installed over the stock wires. I know I've seen them somewhere. There are also places that sell different colored boots as well.
Jerry