Not sure how it happened so quickly I have owned quite a few cars with HID's and have never had to replace a bulb. Be that as it may, do you really need to replace both when you replace one? Insight would be very helpful
Yes, it's not like a paint job. Bulbs are not made in pairs. You will be fine, just make sure you order the correct color; i.e. 4300k, 6000k, 8000k.
Of course, buying in pairs could be a good idea to have a spare.
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