Recently changed all exterior bulbs on my G and Z, contemplating on doing the FX too.
G sedan uses a single bulb as turn signal ans DRL. I have just purchased (from Amazon) and installed that exact thing a couple of days ago. The base fits just snug enough into the socket to be secure (but does not lock in place however).
The white is between 5000k and 6000k color, so won't match the OEM 4300k HID color.
Those resistors run quite hot, I zip tied them instead of using double sided tape. Before putting my fender liner back together, I tested the bulb by leaving DRL on for 1 hour, then then signal for 15 minutes continuously (car connected to a battery tender). Thankfully they passed the test.
Good thing is low cost + plug and play, great if you don't feel like doing the wiring yourself. More elegant and quality setups can be found on vleds.com.