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The Ferrea dual valve spring set for Nissan RB25DET engines is supplied as a set of 24 springs intended for full head service or rebuilds on RB25DET applications. This matched set replaces the factory springs to restore consistent valvetrain behavior across the engine. Purchase the complete set when refurbishing or upgrading the cylinder head to ensure even valve seating and operation.
Ferrea Nissan RB25DET Dual Valve Spring - Set of 24
