I actually tried bulbs similar to the AutoZone ones you show, didn't seem to make much difference, due partly to the bulb location on the housing (too low) and the fact I've got blue dots which blocked the light. The secons one you have linked should work very well, as the leds are spread over the entire lens. The Technostalgia kit works similar, exept that you use the existing lens. I did a minor alteration to mine so the blue dots still work.
