Guy's, Get the book titled "Scientific Design Of Exhaust and Intake Systems" written by Philip H. Smith[FIMechE MSAE] and John C. Morrison[BSe PhD MI MechE] and all will be explained. Read the book then read it again, it is very deep. You may even be surprised to learn that many of the so called new tech. that are being touted today as the latest and greatest discoveries, are in fact very old and proven many years ago NOT to work.
