I am selling 1 15" thunder 8000 sub. It is brand new in the box with warrant card and all paperwork. I bought 2 and realised they wont fit in my car very easily and dont really wanna go through the hassle right now to make em fit. The sub handles 500rms and 1500 peak. I would like to get 190+ shipping but will consider other offers. Also, does anyone know how to properly vent an enclosure?. Do I just cut a hole in the back or something?. It is my first time building a box without help so any input will be appreciated. Thanks