using System;

public class Program

{

    public static T[] ArrayInsert<T>(T[] array, T val, int position)

    {

      var ret = new T[array.Length+1];

      if(position != 0)

        Array.Copy(array, 0, ret, 0, position);

      ret[position] = val;

      Array.Copy(array, position, ret, position+1, array.Length-position);          

      return ret;

    }

    public static void Main()

    {

        byte[] array = { 0x17, 0x8B, 0x01, 0x00, 0x03, 0xEA, 0x05, 0x00, 0x14, 0x0A, 0x00, 0x00, 0x03, 0xEA, 0x05, 0x00, 0x14, 0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};

        Console.WriteLine(string.Join(",", array));

        array = ArrayInsert<byte>(array, 0, 2);

        Console.WriteLine(string.Join(",", array));

    }

}