Spaniarduk said:[ref]scarlet-jester[/ref], i found all led alternatives to be misleading when it came to brightness. I ended up replacing mine with a filamented lightbulb but with twice the power of the BMW original ones. It was a mild improvement. Definitely bigger improvement than with any other led. And with no canbus error. I am now pondering the idea or removing the blue mask and perhaps painting white or chrome the black disk inside the faux reflector to improve light reflection.
Sounds like a plan. I have found a wrecker (dismantler) in NZ that has a Si. I am going to ring them today to see if they have a headlight so I can have a play around too. I am quite keen to see if I can fit an LED halo without having to cut the front off. I got my LEDs taken out and replaced with a filament bulb in the end too - got sick of seeing the canbus error light on the dash