Are those Bose(stock) speakers on the left? Are they no good?

the stock speaker on the left is not Bose; compared to the polks, stock speakers are NO good; what a world of difference in quality and the sound is crispier, better overall.

Polk Components..sweet... I got those

The Polk components are truly awesome; I would probably go deaf if I keep listening such high quality speakers at such high volume ... say wooooot?

Are you saying the Bose speacker that come with the car is no good?

F18mesh, the nismo doesn't come with Bose speakers. The speakers I had in my nismo were no good compared to the Polks. Bose is not bad and is a matter of personal preference. I have the Bose in my Altima and it kicks well. In summary, Bose are a decent option for a very expensive price, the setup I have now have in my nismo exceeds that of the bose in the Altima and wasn't nearly as costly. Not sure if that makes sense.

I understand ..Thanks for the info.

Agreed that the stock speakers are crap. I was going to sell mine on Ebay however, my conscience told me to simply junk them.

LOL Rhinetom, can't think of anyone who would be interested in them; might as well give those to charity and get some tax deduction out of them.

No matter if you have a base or bose system, they simply both blow. Anything aftermarket will simply be better than either. The only thing about the bose system is if you just want to add speakers you will have to add a new amp. As the bose amp only supports a weird OHMS rating that new speakers will not have. Also make sure to run new wires as well.