I have been running these bulbs for 3 years 3 months now. Someone PM'd me to ask how they were doing, and some installation questions, so I am sharing with everyone.
How are your H4 Philips X-treme Ultinon LED Bulbs doing?
I had one bulb get significantly dimmer at about the 2-1/2 year mark. XenonDepot replaced it under warranty, no questions asked. Other than that, no problems. Still as bright as ever, and when aimed according to the Toyota specs, I do not get flashed when in lo beam.
Would you recommend bypassing the DRL upgrade and going just with the upgraded bulbs?
You don't need the DRL Upgrade option - on the FJ it makes no difference. I would recommend bypassing the DRL resistors though. These are located behind the removable panel that runs beneath the headlights. You just replace the resistor with a wire, or run a wire in parallel. This gives the LEDs full voltage in DRL mode. It is debatable if running them at reduced voltage really affects them, since there is no fan, but they appear to be the same brightness in DRL mode anyway, so adding the wire does not change the appearance.
Any hints and tips for installation or just were rubber gloves so you don't damage the bulbs, install and go?
As far as installation, you need to find a spot to mount the driver boxes. I just used self-drilling screws into the bodywork in the engine compartment near the lights. As far as handling them with gloves, that is more of a concern with halogen bulbs which get VERY hot and can be damaged by oil from your fingers. Obviously it causes no harm to use gloves if you like.
One final point... If you live in a snowy area, the LEDs do not warm the outside of the headlight the way regular bulbs do. So snow does not melt and clear as well.