The speakers are not "good"
An old guy like me that has a Spectra (Really) and had the stock sterreo die will find the stock speakers are OK, Needs a sub though, Will add one when I have the spare cash.
If you are under 45 I bet you will not be happy with the stock speakers.
But I urge you to try them, If they are good enough I am sure the money could go into a good sub. ; )