http://cgi.ebay.com/2-ALPINE-SWR-1243D-CAR-12-TYPE-R-SUB-WOOFERS-FITS-FORD-/360381716651?pt=Car_Subwoofers_Enclosures&hash=item53e86c98ab
its a pair of them so 120 each? 600 rms is not cheap?
Was cheapest I found in the whole 2 mins i spent looking. Of course you could probably get even cheaper bidding or elsewhere.