Part of my ongoing efforts to get better light output from the Corolla – trying to do everything I can before determining whether it would be worth the cost of properly retrofitting HIDs in. First step in doing this is making sure the headlights are clear and unfogged – which mine were not. I used: http://www.amazon.com/gp/product/B001TI5IIQ/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
Just a cheap-o lens restore kit from a well known brand on Amazon. The kit came with a spray, 2 double-sided sand paper pieces, a wax-like substance, a base coat wipe and a clear coat wipe. Instructions were very simple and pics below as follows. I don’t think a “kit” is necessary per se – you can just grab a bunch of different grit sandpaper, go from rough to superfine, wet sanding everything and eventually throwing on some kind of wax protectant.
Light output marginally improved.