sealed or ported, would something like 2 HDC 15s fit?
Also in the coupe, I may be willing to give the backseats up if they are poop, and no this isn't for numbers or comps, I'm mainly going for everyday loudness and I may actually get it metered, if I were going for numbers I would try and shoot for 142-145 on music, or as close as I could get. If I can't get that then its fine. Also the backseats let down so I'm sure that would help my cause as well.