Stock is decently nice for stock......Won't know the difference relaly untill you upgrade your speakers, then you'll hear how bad the stock HU really is, when you cannot get around the prebuilt EQ curves.....
I'm loving my 8053, and my car sounds really nice. Not as a bass head standpoint, but as far as SQ and imaging go. I'm about to go on a limb and buy another amp for a 3way setup up front, sub in the rear......
I advise if you like any high volumes, or any sound above regular listening (if your an audiophile) then your not going to be happy for long......I started upgradeing my audio in the car really after it only set it the driverway for less than a week.
Gotta figure out which set of dedicated midranges i will be putting in the kicks, and dedicated midbasses i want to run now.....choices choices choices.....
I may jsut not decide to do it quite yet and still get the amp. who knows...
I advise getting a aftermarket HU first off, and get some nice speakers and you should be ahppy for a little while i'd think....unless your strickly into audio.