beyondloadedSE
Hard-core CEG'er
Seriously, this kit is flat out awesome. I'm confident this could turn the most yellowed headlights into brand new looking headlights. My friend told me about this and convinced me to give it a try. The kit is $20 from O'Reilly Autoparts. I'm sure its available at other Auto part stores or directly from 3M. What makes this kit so nice is it comes with a small sanding wheel you hook up on a cordless drill so you never have to worry about wetsanding again and wearing out your wrist and back. IIRC, it comes with 3 different grits of sanding pads and 2 different polishing pads. Anyways, here's the results from a few weeks ago. Overall, it took me about an hour to do both headlights.
After on Left...Before on Right
After on Left...Before on Right