Description: Iridium composition provides a high melting point and great strength, providing excellent wear resistance and durability Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance Three Piece Fired in Suppressor seal meters spark energy for long electrode life, prevents combustion leakage and helps block radio frequencies that can affect vehicle electronics

Description: Spark. Helps keep engine timing and fuel injection running in sync Helps provide proper alignment, positioning, and spacing for easy installation Synchronizes engine valves and pistons for excellent engine performance

Description: Spark. Sends signals to the engine control module (ECM) to adjust timing Helps prevent damage to the engine caused by pre-ignition