I guess there are a few options/ideas I had on this
1) Dont put the BOV's on the car (stay stock) 2) Run a speed density type air metering setup, but that would be opening up a big box of hurt, pain, and cash to do something like that properly that would pass emissions. 3) Install two small "callibrated" mas air sensors on both BOV's that would meter the air going out of the system. You would also have to create some type of subtraction circuit that would alter the voltage of the main MAS air sensor before it goes into the main ECM. Theroretically when the system operates the factory computer will not know the difference.