R1 mods

I have a 03 R1 and i have 2 extra teeth on the rear sprocket, and i mostly just do some street riding with some runs down the 1/4 mile. I was wondering if anyone had a pointer in some mod's what can can get the bike down the strip a little quicker, i have a D&D slip on and that's it right now. Also i'd like to replace the bikes brakes and i was wondering what would be the best brakes to go with for both quality and price.
thanks for the help  

strap the front and invest in an air shifter for starters.