hey i recently got a 2005 duramax sierra and i need some more bass. wondering wat size of subs will fit under rear seats. thanks

Two 10s is max.

Go read my write up at http://duramax.onlinedesk.net/subwoofer.

Also check this post out. (It was found by doing a simple search)

http://www.dieselplace.com/forum/showthread.php?t=38294

tow L7 tens behind the back seat works wonders.

listen to andrew and do the search !!!