Kicker, JBL, Infinity, Rockford Fosgate, Cerwin Vega
www.crutchfield.com go and read some reviews on the brands they sell and what people have thought of them. Look at the prices and go from there.
I have been working on this car for 6 years now, I don't expect people to be as dumb as I have been, continuing on being. But then again, I work for RD Fabs fabrication shop and am sponsored by Kinetik batteries and Dunlop tires.