Thinking of replacing standard headlight/main beam bulbs to the blue/bright white bulbs... Any problems with replacement? I assume they can be obtained
Osram do Night breakers and Lucas do one called xenon 90.Both much brighter bulbs. I've never used more than the stated wattage due to plastics melting and fogging the inside of the lamp. I personally use HID's in mine which are the mutts nuts at night and gets you noticed so people see you (safety wise).There is a post on here about HID's if you want to go down that route.
Osram also do Night Racers, aimed more at Motorcycles I think. I have these and can recommend, although thinking of HID