Most of the gains with those wave rotors are gained in weight, and in heat resistance..... (to prevent brake fade) ..so to the average schmo, you don't need them on your 6 unless you wanna be the trickest mofo on the block... It's quite funny, because the ZX-10 had brake fade problems under the extreme heat (weather + track riding/braking) in Sport Rider's bike of the year shootout between the ninja 10 and the Gixxer 600 and 750s.... (which didn't have wave rotors)
One fairly cheap mod you can do to your front brake rotors is do a floating pin kit install. It takes about an hour and half from start to finish. I have sold the pin kits to many people on the r6messagenet and they have really noticed a difference on front brake feel, and reduced brake drag. The nice thing is that you can get them in different colors.
here are a few pics of the pins installed:
This was my old r6 when I first got it with the stock rotors:
here it is a close up of the pins on the rotors
here is just a pic after I polished it up my bike and a few other mods the pins really looked sharp
here is a some pics of my my buddies 03 R6 I hooked up for him:
Here we are after we took after rim
here we are drilling out the pins
here we are with a finished product
You can get creative and powder coat your inner rotor carrier and install different color pins to give it a different look:
here is my duc 996SPS that I bought stock:
here it is with the stock pins and gold anodized rotors when I was in the process of painting and modding my bike
here it is close up of my bike front wheel after my first wheel paint job with stock rotors still
and here is one of the latest pic with my new rim color and installing gold anodized pins and gold plating my inner rotor carrier..
here is a overall pic of what my latest bike looked like a few months ago, but it has changed quite considerably... :cheers
This pins are can be used for just a appearance mod or they can be used as a functional mod. If anyone has any questions, I have no problem answering them for you.