I'm looking to mod my 'Busa the most I can without having to take away from the stock set-up. I don't want to crack the engine open, no extended swingarms, no single sided-exhaust, and no nitrous. I'm just wondering what mods are there I can do to get a decent gain but not take away from the stock set-up of the bike. So far I've decide to do a PC3, slip-on exhaust, is there anything else? What about this supposed TRE? How about a sprocket set-up? Thanks for any help.