Just finished installing smoked tail lights. I ordered the ones from
Smart Madness. As usual their packaging was top notch, excellent service and quick shipping.
Here are some pictures,

Installation: The install process required removing the side skirts, rear panels, rear door panel and the rear latch/door it's self. It wasn't tricky until I got to the four bolts holding one the rear panel (next to the rear door, 2 on each side). These screws were
extremely over torqued at the factory. I used a heat gun on each screw for roughly 10-25 minutes, depending on how bad it was. The heat gun helped a ton. Once I got the rear panel off it was a lot easier. Putting everything back on was a lot easier. Total time: 1 1/2 evenings (got dark!). If the screws weren't stuck it would have made the process WAY easier!
Quality: The "smoke/tint process" on these lights are superb. They look GREAT in person and really go better with the car. No complaints at all. Once again, Smart Madness delivers an excellent product!
Safety: I noticed a slight decrease in light output however it is
NOT significant at all. I'm not worried about the slight decrease in light as it is very minimal.
If you're going to comment about how I will now be rear ended - save yours and my time and don't bother 
. Yes I know these are illegal too.
I'm very happy I purchased these. Thanks to Boris & Rachel from Smart Madness, they continue to deliver excellent products to the Smart community!
I will post better pictures tomorrow in the day light.
Enjoy!
P.S. I'm not affiliated with Smart Madness in one way or another.