I ordered a set of the Boogie man heads the other week, the website lists some flow figures for the intakes but not the exhaust. I asked twice for these numbers , once before I ordered them and once after I ordered and hit the credit card. I was told I don't need that info since they flow plenty and would not understand the numbers. WTF!. Not real happy with that answer/attitude. How do they know what I understand. Any of you out in Cad power land have usable numbers the the Ex. flow ?