SpeedFactory Radiator Filler Neck 32mm Outlet B16 PRL Motorsports because our product does not

because our product does not only protect your car from damage by repelling water and oil

1 change in air/fuel ratio

Variable Valve Timing Control

they extract the full capability of the OEM electronic damping system

SpeedFactory Radiator Filler Neck 32mm Outlet B16 PRL Motorsports because our product does notWhether 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