yes in a ported box depending on how low u tune it the lows would be louder and it would get alittle more louder with the windows down and the back seats down
u want 2 stay just with JL subs or are u willing 2 browse around on other subs
if u wanna stay with JL subs id say 2 10w3v2's would be nice and accurate
ur not gonna find many subs for that price range...or power range
i mean i can find maybe 1 12'' with double the power range for $200 or so but $200 for 2 subs...only ones i can think of are kicker comps and RF P1's
Head Unit: Alpine all the way
Amps: RF, or DAT
Subs: Fi, DD, DC
Batts: Kinetic or Powermaster
Speakers: Alpine, RF, JL
Sound Processor: RF
Wires: RF or JL