Originally Posted by 4.8isX5

Also can anyone answer or link me to these couple of questions:

1. Operate foglights independently? Do i need to code it with DIS, or is there a relay to modify or some wiring? I have this done on my other cars.
Not sure how. I don't think you can code LCM with DIS

2. Clear corners? As you can see on my other cars i have it done, the pathfinder are 2 peice so i just replaced the ends, on the audi i drilled the tabs out from the rear, sealed up holes with silicone, and broke the amber peice out through the turn signal bulb hole. Can something like this be done on the X5? Or do i need aftermarket lights?
The headlight is one whole assembly. You can NOT just replace the corner lense. Find a set of EuroSpec healights and swap them. No aftermarket set will look good on facelift E53

3. Front corner amber parking lights, can i code them to stay off and just have the "coronas" on or is this more of wiring/relays. Or to have just the coronas with foglights on.
They are off on EuroSpec E53. You can try to chage the region of your car to enable many EuroSpec features. Coronas = AEs?

4. Lowering, ive read some about coding it lower, but will it stay that way or somehow drive on the lowest setting at any speeds? Or does this require that expensive module or the links?
IIRC, you need Intrax (spell check) module to modify ride height.