Advance/Napa are Overpriced. Autozone is usually $10-20 cheaper for most parts. Example, even with my roomates discount (worked for Advance) a new Alternator was $126 at Advance and was only $98 after the core charge at Autozone. They also offer a purchase card that after so many purchases you get a credit toward more merchandise. Also Being from the west coast Oreillys is always a good one, but unfortunately there arent really any that close to the house.