2400+ rms here and it barely moves. If you want it louder you should def upgrade your alt, get a dry cell battery like stinger or whatever (they charge and output faster - generally more money = more reserve) upgrade your power wires to 1/O and even consider dampening the car. The first place I would start is the rear deck, then trunk, then doors and so on. BTW I would invest in 1 nice 15 instead of running 2 mediocre woofers.
