Seller notes

High Performance Intake Valve; Nitrated +2mm **1x per purchaseIncreasing the OEM's design of 47mm diameter by 2mm, 49mm, allows for a tighter degree of flow through the cylinder.Weight slightly increased over OEM's; suitable for HIGHER RPM'sThe nitrated shaft optimizes operation, an iron-clad solution against pitting.Polished valve plate "swirl-polished" allows for optimum flow characteristics; precisely milled 45° angle valve seat.In combination with other tuning measures (e.g. flow-bench, car...

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