Sound Deadening is very important for good bass. Depending on how much of your sheet metal is rattling you can lose up to 3db through resenation. That and you dont want to be the ******* at the stoplight that all you can hear is the rattling of your trunk.
Oh yeah ported is the way to go for SPL.
Eclipse CD5442 deck
SAVV 5.6" Monitor flushed into dash
SAVV 7' flip down monitor
JL Audio 500/1 for subs
JL Audio 300/2 for components
JL Audio XR525CX components
2 JL Audio 10w3v2 subs under backseat, Audio Control EQX
Sony Playstation 2, 2 Optima deep cycles, and too many things under the hood to list.
98 GMC Z-71 Extended Cab Vortec 5.7