lavapants yes it CAN be dyed but its a good idea to take it to a professional to clean and prep all surfaces correctly so it doesnt fade off, crack or peel. you have to also make sure that you use a good quality dye over the black and not just any dye.
its always a better idea to reupholster than to dye if you want it to last.
also where do you live and what kind of car is it? :thumbsup: