I've got a 56' reg SE 335D and also want to change from factory ones to something slightly brighter. I'm after a crisp white xenon-ish type of look but nothing overly bright. Also do you guys know if I need to replace just the bulb or the whole Unit? At work atm so can't check.
I'd be grateful if you could recommend some options for what I'm after (most importantly ones that don't throw any error codes).