I recently had a local shop put a system in the sport. Went with 2 Jl audio 10 inch w3's. They are in a ported fox box. Subs and door speakers being pushed by a Jl 1000/5. 400 watts to door speakers and 600 watts to subs. Hooked up to factory head unit via line output converter. Factory door speakers in doors. Sounds amazing. Actually louder than I expected. I was unsure about using a pre fabricated box but the fox box fits perfect and sounds immaculate. Just get a good shop to do the install.