Just changed tails to the LEDs and front sidemarkers and corners to LED. Had to match the headlights also with some Nokya Arctic White H7's..and finally, changed the grille to sport mesh style..grey...It's not quite a 4, but at 140k miles right now, I'll keep it..lol

 

I prefer the 3's exterior to the 4's....but hey! When you figure out how to convert the INTERIOR, lemme know! Jealous of the LR4 interior and engine....

 

Whiter light isn't necessarily better, in fact you often seen worse with it, despite the sensation of seeing better.
Here's some tech on it: Superwhite bulbs