SpeedFactory Radiator Filler Neck - B16/18CR PR3
SpeedFactory B Series Upper Fill Necks are designed to be used with custom radiator setups. These are made with high-quality billet aluminium machined flange and filler neck. This changes the high point of the cooling system for easy fill of the radiator.
This filler neck suits PR3 heads only, found on b16a and b18cr motors.
Radiator Cap sold separate