I have a G37X 09 Coupe and was wondering what this yellow light was and how I could replace/what to buy? I would like it to match the the regular light above it. I know its a bad picture lol, my bad!

 

It's either a running light or fog light. My '08 has fog lights in the headlight housing (so that may be what it is). However mine have been disconnected and I use the fog lights on my IPL bumper.

I only buy from here:
https://www.diodedynamics.com/

Best low beam bulb is the Osram CBI 66240 (Amazon, Retrofit Source). Brighter and whiter than OEM.

 

 

Nope, google my friend and search the forums.

 

That's the "city" bulb. I replaced mine with these:

https://www.diodedynamics.com/city-l...oupe-pair.html

 

 

Seeeeaaarrrccchh. Diode Dynamics is all over the forums.

 

We can help with that! We've got 5 distinct color options and two different brightness levels for that particular bulb. I see the link was already added above (thank you) but I'll attach it here as well: City Light LEDs for 2008-2013 Infiniti G37 Coupe (pair)

Jake H.
Diode Dynamics

 

 

Literally says it when you hover/select one, one is brighter (more lumens).