HI, would you like to increase my pressure yield in the interior of the car. is it advisable to include BR pipes (incalculable also not that you can calculate what) in the hut rack in order to get more pressure? Does that mean that the pressure through my existing ski bag opening and then through the BRs in the hut rack to guide inward? Would I have thought of 2x 70mmx150mm? not that I will vote with it any garbage and the whole result will sound worse. sure a lot of pressure from the subs away and powdering into the air, so if the pressure is already pressing on it, can he come right inside? Greeting Eddie