After almost 10 years and 200K+ miles of driving, my headlights are in desperate need of lens restoration. Not only do the look bad, but the light output has decreased drastically.

Would like to get some recommendations on products that have been used and given good results.

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2001 X5 3.0i (PP/WP/AP) Traded at 213K miles
RARE White on Black - Why does everyone get Tan??
First E53 with 215s on XOutpost!!