SpeedFactory Radiator Filler Neck An16 Outlet D16 51320-S84-A01 This flywheel is machined with

This flywheel is machined with less material to assist in quicker revving

We've received numerous customer reports about how our magnetic sump plugs have saved their engines from severe damage

and chemically polished for strength and durability

which has its roots in racing

Turbocharger technology is rapidly evolving to meet strict fuel efficiency standards and exhaust gas regulations

SpeedFactory Radiator Filler Neck An16 Outlet D16 51320-S84-A01 This flywheel is machined withWhether 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 D 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