Insert into BP Profile Header

add_action( 'bp_before_profile_loop_content', 'insert_my_stuff_into_bp_header' );
function insert_my_stuff_into_bp_header() {

	// First we need to get the user ID of the profile
	$user_id = bp_displayed_user_id();

	// Here you can add in anything you want and it will show up in a users profile.

}