Well I figure now that i have a great woofer for the monte, I should possibly upgrade to aftermarket interiors. A few questions though. First off if I were to just swap the speaker would I get component speakers, coaxial, 2-way etc? Also would the sound quality be enough of an improvement over the factory speakers to justify the $$ seeing as how the stock speakers actually sound pretty decent. I plan on going with all alpine BTW to match my sub.

 

i wouldnt limit your options to alpine by any means. brand favoritism doesnt usually add up to a great system. i would look for components and expect to have to modify things to make it work and sound good. you will need another amp also