I dont think anyone here has posted anything about this so I figured it would be some useful info. I weighed my JDM 1 piece headlights and my stocks ones. The Stock Headlights weighed in at a total of 14 pounds. The JDM Lights weighed in at a total of 6 pounds. thats an 8 pound difference… and you all thought carbon fiber hoods were a cool way to free up some weight 
yea u could feel teh weight difference just by holding it, probably cause of the no glass used and brackets that are plastic instead of metal
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Heh, that’s the first thing I noticed when I installed my JDM one pieces this weekend… click on the link in my sig to see pics… maaaan what a difference! Good post, BTW!