Tial BOV/VRSF Chargepipe Install Questions

I couldn't find out what these extra pieces are for by searching so I was hoping somebody here could help me out. Basically, I bought a used Tial bov and vrsf chargepipe from somebody local. In the box I got some extra "pieces" (idk what to call them) and I don't know where they go. Picture will be provided below.



It also didn't come with an O-ring. Can I just purchase one of those from a local store?







If that doesn't work, here is the direct link: http://ift.tt/1yKX3GG



Thanks