Ok, aside from the '02+ 996 conversion, there could be a couple of other factors.
The quality of that picture is hard to deduct from, but it doesn't look like the turn signal is amber -possibly a clear bulb is being used.
ALSO...
Even in that style of light (that we are generically calling '02+ 996) there are 2 versions available:
- '01+ 996 TURBO lights
- '02+ 996 CARRERA lights
The Turbo lights are smooth inside and surrounding areas of the lights.
The Carrera lights have these ridges -quite like Ruffles Potato Chips that run vertically through them.
Turbo (Clean and smooth)
Carrera (Notice the ridges)
Furthermore, halogen versions do not have the oval chrome washer/sprayer cap while the Litronics (xenons) do.