I am new to the ZX-10R and need some real info with proof to back up any claims. What is a good exhaust to install? Is it worth the extra money to install a full system? I currently have a Muzzy Carbon SO installed (on the bike when I bought it). Also is the really a difference between K&N & BMC to justify the extra money for the BMC? I have read about the Kawy race intake cam but is there any mods that need to be done to the engine for this cam to work properly (new or better springs or port work)? I want more speed without a dependabilty problem. Please no hate mail, I'm new and have to ask so money is not wasted on the wrong parts.