i got to go with hornet919 on this one. a good piaa or osram makes a huge difference. i went with an osram rallye, which runs at 70/65 watts and if i remember stock bulbs are 60/55. it was a 10 watt jump, but the stock wiring harness can handle it. plus, its only a 25 dollar bulb as opposed to an over 300 set up hor hid's.
i think there just comes a time when you have to take a hard look at the 919. i love the bike, but nobody outside this forum really gives a shit about them. how many friends have you told you ride a 919 when they ask what kind of bike you have and (9 times out of 10) say they never heard of it? is a $3500 bike worth a $320 light set up that you will get a $0 return on when you sell it? thats a mod that is 10% of the bikes worth, when you can get almost the same performance out of a good halogen bulb. alot of people get caught up in the disease called modaholicism, it is just a shame that in the end, the 919 is a vehicle that is not worth it. and when your a modaholic (i am in recovery) you put the "blinders" on and go after the expensive stuff. give the good halogens a try, you wont regret it. if you dont like them, your only out 25 bucks.
my bad, didnt mean to soapbox it.