A) How is this thread going still?
B) Why hasn't anyone that says they're going to do this gone and done it already and told us how awesome it sounded?
C) I can assure you, putting in amped components will almost always lead to better bass output than only having stock speakers. I'm running a set of 6.5" comps and that's it right now, I have a good response down to 60 where I've got the x-over set.
But what do I know...it's not like I do this for a living