This Radium Engineering fitting collection is intended for use with the 20-0889 fuel rail to allow connection of the factory fuel feed line. The kit supplies the specific fittings required to adapt OEM fuel plumbing to Radium's rail hardware, simplifying integration when upgrading to that fuel rail while retaining the original feed line connection point.
Radium Engineering VW/Audi EA888 Fuel Rail Plumbing / Port Injection