Best ones are the Stock OEM LED tail lights. available on 2003.5-2006 M3 and 2004-2006 Coupes.
I think there is coding involved though unfortunately to use updated tail lights on the older models.

Spyder tail light are not my cup of tea.

 

^what he said.
OEM LEDs are by far the best. you’ll need to do some minor coding and use the adapter cables. then you’re completely set.

the reason you can’t find photos of those Spyder lights is there pure crap looking and lasting. LEDs look cheap and so do the tubes when lit.

there are two decent aftermarket LED brands, Eagle Eyes and Depo. and even they don’t always last long. but they’re the closest copies to factory LEDs and better electronic quality than others out.

 

I appreciate the info. I don't want to code anything so the stock LEDs are out. And besides, there absurdly expensive. Maybe I'll just go with the stock lights again.

 

just go aftermarket LED replicas then. don’t go Spyder style. the two I mentioned have resistors wired inline so no coding needed. plug n play

 

Oh, they've got the resistors? Perfect. That's what I was looking for. Thanks!

 

Does anyone mounted spotlights? Which one is the best?