Don't do it. Unless you want to do it every 6 months. They look nice, but burn out very quickly, because they are "high performance" bulbs, as i was told by Sylvania. Do a search on this topic before you spend the $40.
Mine lasted a year. I think it just depends on on the miles you drive. I only put on about 10,000 miles when they burnt out. And ther DRL definatly do not help with the longevity.