Thought I would share my experience with the GnR kit I bought. To keep it short but sweet, yes the speakers sound better than stock. I'm happy with my purchase and would recommend them for music pins specifically. Is it imperative like a color dmd? No IMO. Is it super easy to install? Yes. And I can't stress how good the customer service is from Dan. The guy is a BEAST and responded to my questions literally within the hour I sent it.
Big props to Dan and appreciate the help. My GnR now sounds even better. Cheers.