I did the same with my 04 GTO. I fiberglassed an enclosure into the same side. When removing the stock subs there is plenty flow for the sub to project into the cabin. With doing an all fibergalss enclosure I was able to get 2 cu ft tuned to 32hz which originally had a brahma, then a Mag. Nice work.Wasen't really worried about how it flowed but more of just fitting it in there and still having room.
