Originally Posted by rhiannon666
A local shop can replace my factory 8" with an 8" Kicker sub and fit in the factory box, is it even worth it or should I just go bigger?
Might be worth it. But the sub really isn't that bad in the Focus... the real issues are the speakers. They're OKAY but don't separate lo's/mid's/hi's very well. Money would be better spent replacing the speakers/tweeters than replacing the sub. Unless your motivation is just more bass.