I'm about to redo my small trunk setup (G35 Coupe), and I am going to be putting in two 10" subs ported to try to maximize output in my small space (3-3.5^3 ft). Right now I have an Orion h2.12.2 to last me until I am finished with my new project. The amp is a US Amps MD.3D (06 model), and the subs that are highest on my list right now are the Sound Splinter rl-i's or similar. I know there are probably subs that would better fit my needs, but I just cant think of them right now. Price isn't too much of an issue if the sub is actually worth the price. I might even break down and get some W7's if they end up being the best for the money.