subwoofer box

I am wondering if anyone knows if it is possible to get a matching Pioneer subwoofer for in my trunk. It came with the factory Pioneer 10" shallow mount in the box. I want one on the opposite side of the trunk as well, but not sure if they make one for the other side or it I would have to just...

i have a 12w1 right now and i wanna know should i just use that box its a jl box but also i was wondering if i should stay with the ported or if i should go sealed cause its a better sub and if there is a better box anyone recommends