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The Ferrea valve spring kit for Lotus Elise and Exige 1.8L 2ZZ-GE applications is an endurance-style dual spring set made for those Toyota-derived engines. Intended for sustained use, the dual configuration replaces standard springs to provide more consistent valve control during prolonged or demanding operation, offering a valvetrain solution matched to the 2ZZ-GE platform.
Ferrea Lotus Elise/Exige 1.8L 2ZZ-GE Endurance Dual Spring Kit
