I've done a few aesthetic things with my bike, now my next thing is to add something to the mechanics. I've got a few ideas, but some words of advice from the experienced guys would be sound volume. On my list, I have: K&N Racing Filter (K&N advises not using this unless your bike is "tuned for racing". Is it really that big of an issue?) Sprockets (Not sure what to do; I want more torque and sacrificing top speed doesn't bother me) Power Commander? (I was told that Power Commanders don't make much of a difference on the newer R6s?) I'm not really sure what else I could do. I'm not trying to make a straight-line warrior, but I would like to have some more acceleration. As I said, sacrificing top speed isn't an issue because I don't plan on going 150-170 mph on the road, any time soon. Any help would be great. Also, while I'm here, how far past the "wear indicator" on your tires can you generally go? I'm pretty much on the indicator, but there are still some "valleys" in the treads. They seem fine to me.