Originally posted by MeanGreenGSX
the afc can only handle up to 660's but thats a lot better than 440's
87-91 Mazda RX-7 TIIs come with 4x550s stock. There are different impedences between some, but generally, they go for cheap on ebay.
http://cgi.ebay.com/ebaymotors/ws/eB...tem=1871960112
There are two 550s from a 93 rx7 with a buy it now price of a whopping 60 bucks. Then send em off for cleaning.