First.. whats up everyone. I just got a 2004 X5 3.0i sport pkg and all. im new to bimmerforums so ill get pics soon. Second, only option it doesnt have is the xenon self leveling option. just the h7 55w halogens. anyway, I see all these xenon conversion kits. some with ballasts only. some with ballasts and ignightors. some with wires from the battery and some that only use the power from the existing headlight wiring. I hear different stories from everyone. some say it will f** up my electrical system. some say it will melt my headlight housing. some say it will melt my existing wiring and fuses. HOW DO I KNOW WHAT I NEED? help!