MACE HIGH VOLTAGE IGNITION SERVICE KIT TO SUIT HOLDEN LS1 5.7 V8The cause of an irregular misfire or a stumble under load may be due to a failed component of the ignition system. This Ignition service kit includes everything required to freshen up the ignition system of your vehicle. This ignition service kit is specifically designed to suit Holden vehicles fitted with the LS1 V8 engine. Key Features: OEM replacement coils to work with all factory sensors. Spark plugs ignite more gas and air mixture inside the