Realizing I may be confused. Were there 2 options, or 3 for the Pre-LCI e53's? I've always thought there were just halogen and Xenon, but you're mentioning factory LED's has me wondering if I missed something.

If I go for something OTHER than the Xenon, I can always toss my existing passenger side one on eBay to offset it, just trying to figure out what makes the most sense and is best bang for the buck.

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2001 X5 3.0, 5sp