I need some input about my bike, Its a 00 cbr 600 f4. I bought off a guy who was selling it for his buddy. I wasnt able to get many details about after market parts. The bike had a aftermarket short (super short) exhaust with no name stamped on it or any identification. Its probably a cheap e-bay pipe but I do have the stock exhaust . All I have done is added a K&N air filter. IS this the tyoe of bike you just leave the stock parts on and ride around, I cant even power whellie, Some one please help!!!