Bought a set of bright white LEDS from rx8strakes.com, and one of them is flickering.. I checked the housings and the bulb, and re-tightened everything but it still flickers. I bought them less than a month ago.... Are they dying? Should I grab another bulb from rx8strakes.com or should they just replace it n/c?

flickering = about to die...just my exp in the past...

Check the alignment of the contacts on the bulb. Some of them get pushed to the side when installing. If those are good, then the bulb is likely gone and needs to be replaced.