Bulbs do grow dimmer, especially long life (LL) oe models. Reflectors and housings also.
Most Huyndais of the era use 9005 high beams. I can wholeheartedly guarantee you'll get more light out of a Toshiba 9011 bulb. A pair can be had for $24 on ebay. You won't find any bulb brighter.
If I knew what kind of low beam bulb you needed we might could make similar recommendation.
Edit - appears the low beam is HID, D3S on a Sonata. Well, factory reflectors are prone to "bowl burn" but you might get some increased output out of a fresh set of bulbs. Philips Extravision and Osram Night Breaker Gen-2 are considered king of the hill in replacement HID bulbs. I'm assuming that would also be true in the D3s format (and not the typically referenced D2s).
I'm kinda amazed (disappointed) on how many specific bulb suggestions you got without anyone honing in on the required types. If I'm correct about D3S, you can take all the halogen low beam and LED retrofit suggestions and ignore them.
Most Huyndais of the era use 9005 high beams. I can wholeheartedly guarantee you'll get more light out of a Toshiba 9011 bulb. A pair can be had for $24 on ebay. You won't find any bulb brighter.
If I knew what kind of low beam bulb you needed we might could make similar recommendation.
Edit - appears the low beam is HID, D3S on a Sonata. Well, factory reflectors are prone to "bowl burn" but you might get some increased output out of a fresh set of bulbs. Philips Extravision and Osram Night Breaker Gen-2 are considered king of the hill in replacement HID bulbs. I'm assuming that would also be true in the D3s format (and not the typically referenced D2s).
I'm kinda amazed (disappointed) on how many specific bulb suggestions you got without anyone honing in on the required types. If I'm correct about D3S, you can take all the halogen low beam and LED retrofit suggestions and ignore them.