Miller 10+ year member
$
OK...I am going to put 3 3" x 13" ports in my box and im gathering my thoughts on how to do it... I also am going to need to flare it so that it reduces sound...i was thinking about just buying a 3" x 5" flared port from crutchfield and then extending the port with PVC piping...how exactly would i connect PVC piping to those ports from crutchfield...and how big cuts should i make in the box for the ports???anyone know??