MJ,
ANYTHING over the stock speakers will be an improvement. Two tins, a keyfob magnet and some burlap will be an improvement over the stock speakers we all started with.
If you swap to either HogTunes or HawgWired's current speaker you really won't be believe the difference you'll hear. It'll be both significant and positive. You won't have to push the radio's power (volume) up nearly so high to get much better sound. That means your not pushing its internal amplifier up in to the range where it's pretty significant distortion comes in to play more. So the speakers will be better and the radio will be better because of them.
Our original speakers are, unfortuantely, little round pieces of poopeekaka. That we should have something better is without doubt. That there are tons of options from the automotive market gives us choices. With the HogTunes and HawgWired options we've actually got really good speakers setup for the motocycle environment though. If you feeling like spending an hour someday yanking the fairing on and off the speakers are a really good thing to upgrade and a really easy change to make.