$165 from Realm Of Excursion's store i think. i got a set going in my brother's truck whenever we can get around to it.
1 word of advice to anyone who has these or are thinking about getting some. open the crossover boxoes and check the lower inductor coil. on mine they were loose so i reglued them down. if you don't, eventually with all the vibration in the car and from sub bass the solder joints can break loose and that will cause damage to one of the drivers for the side that breaks and possible your amplifier too!!
i've also had simular problems with CDT and JL Audio's crossovers...