MSD’s team of engineers have been hard at work during the past year improving the Multiple Spark Coils for the GM LS-engine system. The newly designed coils replace OEM coils, but they can deliver a more powerful spark to the plugs, in combination with multiple sparks at idle. Boosted spark voltage and power, and the capacity for multiple sparks, help refine the combustion of fuel to yield a more efficient burn. This creates better throttle response, quick starts and smooth idling, in addition to better high-RPM performance! The MSD Coils come in three different housing types. Make a visual match with your application.