Doesn't the 848 got some projectors? Throwing hid on the 899 halogen reflectors will just cause more light scatter and glare for oncoming traffic. Just like you see a bunch of cars on the roads today. I'm looking at retrofitting a pair bi-xenon morimoto matchbox projectors as these are the smallest projectors for the little bitty space on the 899 headlight. Just waiting to see when more used headlights are hitting ebay so I can retrofit while I enjoy my 899.