The overall audio quality, receive, and general performance can be improved over stock. Remember, a stock radio is "ballparked" in on the assembly line. A complete alignment of the radio is a must. Beyond that there are many other options as far as swing kits, audio kits, and final swaps. If you want substantial power improvement an amplifier would be the best choice. A proper tune is still needed though to set the carrier right for the amplifier you get.