Friends, in stock at #Th3Lab are these brand new, ultra rare and discontinued Vertex oil filler cap.  I professionally polished these caps – Vertex never provided them  with a polished finish.

These caps fit the following engines: RB, SR, CA, VG, VQ, QG, QR, GA, CG, CR, F20/22, K20, L13/15, B16/18/20, E70, D13/15/16.