The Radium Engineering fuel rail is a CNC-machined aluminum fuel rail made for the VW/Audi 1.8T 20-valve engine and features 8AN ports according to the market description. Intended for that specific 1.8T 20V application, the fuel rail is presented as a precision-machined aftermarket fuel delivery component; see the manufacturer product page for full technical details.
Radium Engineering VW/Audi 1.8T 20V Fuel Rail