That is good information to know, since it doesn't seem to be in the owners manual. I also couldn't find anythng in the bulb manufacturers cross reference charts for the 08 Elantra fog lamp bulb. From what I can tell, the H27 is the same as the 880 or 881 bulbs (Sylvania and GE). The 880 has a strait base and the 881 has a right angle base. I am guessing the 881 is the correct one. Let us know what you find. Thanks for the post.
Edit: As I was researching this, I ran across this post in the Sonata forum:
http://www.hyundai-forums.com/index.php?showtopic=19475. It would appear that you want to avoid the higher wattage 896 bulbs.
This post has been edited by alanb: Oct 24 2009, 09:27 AM