these are smoked not blackout. It does reduce the amount of light. Where i work is outside the city with a long stretch of road with no street lights. it was harder to see with them on with stock lights. I swapped my light bulbs out to the silverstar lights at auto zone and i was able to see...
sold my mustang a while back. cleaned out the garage and found a bunch of parts.
Retail for 60 bucks + shipping. Will sell for 30 +shipping or picked up.
http://www.brenspeed.com/gt0241s.html