alright, im building a ported box for my JL 12 W6.V1. I am following the exact dimensions from my spec sheet - it calls for two 2.5"x13.6" aero ports. well, i cannot find any aero ports online that fit that measurement, so i was curious if i can use either 2" or 3" aero ports instead. if so, how i would go about calulating the new port dimensions. i have 17.75" of depth to work with. any help would be great!