The GS4 High Performance Grilling System sets a new standard in the world of backyard cuisine, and lands the Genesis II and Genesis II LX series of gas grills in a class of their own. Each component of GS4 was uniquely designed for ease-of-use and to provide an unequalled satisfaction to your backyard grilling experience. The GS4 grilling system is composed of four key components: The Electronic Ignition, High Performance Burners, Flavorizer Bars, and Grease Management System. These components ensure that every aspect of your grilling experience is easy and reliable, from the moment the burners are lit to the general maintenance of your grill. And together, create the strongest grilling engine within every Genesis II and Genesis II LX grill.