I am going to service my rear shock myself and have been calling around to see if anyone can charge my shock with nitrogen. No luck, Dealer's do not do it and I called Race Tech in Corona and they said no due to liability. Does anyone know where I call to see if they can do this for me? I will try to call Pro Circuit on Monday but I think I will get the same response as Race Tech gave. I am also going to post this in the "General" forum.