Do they have some reputation in speaker business????
also What Can i put in the rear subwoofer place??(replacing stock one) I want more bass response. I have Alpine 1006 head unit.

 

Oz speakers have a good reputation in the car audio industry. Is there a reason that you have selected them over others? If you heard them and liked them then I would go with them. Trust your ears.

Do a search on RMB8 and look at the midbass subwoofer that DrCookie put in the stock location.

David