SpeedFactory Radiator Filler Neck An16 Outlet GSR Fujitsubo Generiously Cast Runner Walls for

Generiously Cast Runner Walls for Porting

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Genuine Nissan front lower

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SpeedFactory Radiator Filler Neck An16 Outlet GSR Fujitsubo Generiously Cast Runner Walls forWhether you have a custom radiator or a SpeedFactory Race Tucked radiator, you need a proper way to fill your engine's cooling system from the highest point and we have the solution. SpeedFactory Racing B Series Upper Coolant Fill Necks are compatible with most aftermarket radiator setups, and change the high point of your cooling system for easy filling and system air bleeding. Our necks are manufactured in house using high quality aluminum materials