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The Brian Crower single valve spring is a direct-replacement spring for Mitsubishi 4B11T (Evo X) and Hyundai G4KF Genesis single-valve applications. It restores valve control and appropriate spring pressure during high-rev operation or after valve-train service. Offered as a single spring for engine rebuilds and upgrades, it suits builders seeking an OEM-fit replacement for the listed turbocharged four-cylinder platforms.
Brian Crower Mitsubishi 4B11T Evo X / Hyundai G4KF Genesis Single Valve Spring
