will likely fry your electrical system (switches and relays are the most likely points of failure) either immediately or a slow death by cooking. The only way to go to a 100W bulb would be to run a separate (correctly sized) wiring harness to the higher wattage bulb (run off of a relay). Even then the extra heat created by the bulb may melt the reflector in the headlamp housing (they are plastic).

2003 S8
Brilliant Black on Caramel
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