Corvette LS Blaster Coil Kit - MSD : C5 1997-2004 LS1,LS6Corvette LS Blaster Coil Kit MSD : C5 1997 2004 LS1,LS6 MSDs engineering team have been working diligently the past year to improve our Multiple Spark Coils for the GM LS engine platform. The new coils fit in place of the OEM coils yet are capable of delivering higher spark energy to the plugs, topped with multiple sparks at idle rpm. Increased spark energy and voltage, along with multiple spark capabilities, help improve the combustion process of the