This thread is intended to recap details I've come across while researching how best to upgrade the stock lighting (specifically headlights and fog lights) on my 2015 4Runner.

Stock Bulb Location & Type

- Low beam: H11
- Daytime running light (DRL) / high beam (the same bulb serves both tasks): 9005
- Fog: H16

HID Kits in '14+ Low Beam (Halogen Projector)

- Example beam pattern (thank you, @Atticus ).
- Popular kits: The Retrofit Source (TRS) and XenonDepot

HID Retrofits

- Forum member setups: here (thank you, @iLuXoR817 and @Miguelon )
- Extensive information on retrofits: here

Modifying Halogen Bulbs

You have an option of modifying higher-wattage bulbs to fit the stock harnesses. Read more here (thank you, @eddiebx ).

H11 vs. H16 for '14+ Fog Lights

H11 is not the same as H16, but you can consider using in place of H16. This will be a calculated decision, as the H16 is a lower wattage bulb than the H11. The discussion is ongoing in Rav4, Prius, Corolla, Camry, etc. forums. There are mentions of housings/wiring melting with the H11's, but from what I can tell it's all hearsay.

H16 19W Bulbs (and Advertised Color Scale)

- Nokya Hyper Yellow (2500K)
- PIAA Plasma Ion Yellow (2500K)
- Nokya Crystal Clear, Stage 1 (3100K)
- Xencn (3200K)
- Nokya Arctic White, Stage 1 (7000K)
- GP Thunder Super White (7500K)
- Anzo USA Super White (?)

Other Options for Fog Lights

- Morimoto XB LED (Type T)
- Highlander Fog/DRL Combo
- Philips X-treme Ultinon LED Bulb
- Rigid Dually

Importance of Fog Light Color

- Extensive discussion: here

My Lighting

- Low beam: H11 Osram Night Breaker Unlimited (color scale: 3600K)
- DRL / high beam: 9005 Stock
- Fog: Rigid SAE Compliant Fog Light Kit (color scale: 5700-5900K)