Thanks Chobber. I read the thread. I have been reading almost all threads today. I found one where they were discussing the Cobra FI 2000 self-tuning Power Pro. After I ordered my new V&H pipes, I was thinking about buying a fuel management system and air cleaner, but on one of the threads members were complaining about the Cobra. Do you have any experience with or have you any opinion regarding any fuel management system and air filter? Thanks for you response.