Here is my background with the lights: I have had and ran several different sets from several different places of the replica 99spec combo lights. I also have ran and still currently own OEM combo lights. Here is a comparison between the 2.
Ebay 99spec Combo lights:
The facts:
-They are around $100 new
-They come with a harness that will directly plug in to your stock light harness, putting your grand total for the lights + getting them to work at ~$100
-Very very small differences. If you don't know exactly what you are looking for you won't be able to tell the difference between the replicas and the OEM lights and they are not anything that makes the lights look worse.
-Driven with the lights on 500miles(around 9 hours), only stopping for gas once and they did not melt, nor have I ever had an issue with the lenses melting when on for extended periods of time.
OEM 99spec Combo lights:
The facts:
-They are around $300 new
-They require a harness adapter available from knightsport racing to be able to plug into our FD's that cost $50 putting the grand total ~$350.
-They are OEM, so you know exactly what you are getting.
-Never had any issues with these lights. Have not driven quite as much with these.
Pictures:
Here are the pictures of the Replica lights, the difference between the OEM is 01-216 blah blah blah is stamped on the lense. The actual bulb housing is the same color, but have tiny "squares" all around the inside. As you can see, I run them on my car
Here are the OEM lights: Note that these have Stanley P0234L on the lense and the bulb housing is smooth on the inside.
To me, the difference does not justify paying an extra $250, but that is just me.