creationsbyme 
2002 Nissan Maxima Sedan SE 4dr Sedan (3.5L 6cyl 4A)
Replacement cost of xenon headlamps
 First, the motor runs great at 140K. The trans has started making noise. Undrivable right now. When I replaced one of the xenon headlamps, I had to pick my jaw up off the floor, we're not talking about the whole assembly, just the bulb itself.  At the Nissan dealership in Victorville, CA $258.00 for the bulb!!  Can you believe it?  I went on line and found the cheapest to be $159.00  My suggestion for someone who may not want to pay that much is when the xenon goes out, run your brights instead of replace.  Bright bulbs cost $8. Oh, the spark plugs are internal.  Tune up costs $418.00 to replace 6 spark plugs.