GReddy Fuel Rail Adaptor (Nissan For Fuel Press Regulator)
This is a Trust GReddy Fuel Pressure Regulator Union Adapter with M16 threading. The item is necessary for those upgrading to an adjustable fuel regulator and need to remove the OEM unit from the fuel rail.
You need to upgrade the injector and fuel pump if you change or tune the turbine. HKS has specially designed 2 jet type injectors for each engine. HKS also has other types of injectors and fuel pump to support fueling for your vehicles.