This is stand-alone mod that contains an esp file BombshellLookForPiper 2F1E.esp. When installed the mod changes the face and hair of vanilla Piper npc to the looks of Bombshell Betty by Mystolle
Copy the esp file to Steam/steamapps/common/Fallout 4/Data folder, reload the game being sure the esp is active.
To uninstall: Reverse above.
Update: In addition to Piper, now includes separate files for the Bombshell Betty Look for Cait and Curie.
My thanks to Mystolle for the Bombshell look, to 13rink who provided direction and inspiration with her Bring Shepard Back companion , and lastly and greatly to xatmos for his utility Face Ripper that brought if all together quite simply.