Alpine SXE-1725S 6-1/2" 220W 2-Way Type-E Coax Speakers

Here's a very affordable 6-1/2" Coax Speakers from Alpine, the SXE-1725S. If you're looking to replace with great sound and performance, at $39.00 for a pair, you can't go wrong.
http://www.onlinecarstereo.com/CarAudio/p_34649_Alpine_SXE-1725S.aspx