i am getting ready to put some mods on my car and was wondering if anyone knows if i have to have a carb sticker for all of it or if say all my vacume lines and stuff is still connected to my aftermarket intake if they will take that. also maybee if i need one for headers or can i kindof "hide" it with a heat shield

Check the box to see if it says that it is legal for use on all 50 states, sometimes they say "Not for use and/or sale in California", if it doesn't say anything on the box call/email the manufacture and ask them.