yes you can

bit of a pain the the arse and take a while and if you dont do it right you will fuck up your head light. but all you need is a heat guna nd a screw driver

just keep heating the edges of the lense to break the seal. after the lense is off mask it up and spray the bits you want black. make sure you use high temperature paint just to be on the safe side. then let it dry glue it back together and fit it on