a higher output may or may not damage the OE wiring for the head lights. Since this is the primary headlight, there is a large possibility that it may burn the wiring, you may have to have it upgrade it to a bigger gauge wire. Or you can just bring up wattage to 65w low and 85w high? I too have use Hella Extream and Optilux on another car, but i don't really know the gauge of wire used on the RL.