Hey wassup guys, I know that when you add performance parts to enchance performance, such as Intake, header, or exhaust and etc. it will weaken your low end hp, and increase the high end hp. But I don't understand why, can anyone give me a better understanding of this? Since most performance parts are made to flow better, if theres more flow during anypart of the rpm range, why couldn't the extra air and along with extra fuel transmit to extra power? Why couldn't the extra flow from I,H,E improve the low end power, just like a bigger size engine, isn't it the same because there's more air in there just like the bigger engine? Also, for example when you install performance cams for any engine, why does it only improve the higher end power?, and even hurt low end power. Thanks for your time