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The Brian Crower valve spring and retainer kit for Honda K-Series and Mazda MZR engines includes titanium retainers paired with valve springs, intended as an upgraded valvetrain solution for those specific applications. Supplied as a dedicated kit for K-series and MZR platforms, it supports engine builds that call for matched spring and retainer components and is offered under Brian Crower's performance engine component line.
Brian Crower Honda K Series / Mazda MZR Titanium Retainer and Valve Spring Kit
