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The Brian Crower single spring and titanium retainer kit for the Mitsubishi 4B11T Evolution X provides valve-spring hardware tailored to that engine. Intended for builders and service shops working on Evolution X cylinder heads, the kit supplies lightweight retainers paired with springs to support valve control under higher rpm or modified conditions. Use when updating valvetrain components on the specified engine platform.
Brian Crower Mitsubishi 4B11T Evolution X Single Spring & Titanium Retainer Kit
