Flavor Enhancers are a very simple retro-fittable option for ALL LazyMan LM210 series grills. They replace the coal grate and lava rock completely. Overtime, the lava rock will collect grease and other particulates that will cause uncontrolled flair-ups. Due to the porous nature of the lava rock, heat is not evenly distributed across the cooking surface. These units are designed and implemented to create a more evenly distributed cooking heat across the whole cooking section of the grill and have proven to be effective at preventing those un-wanted flare ups. The flavor enhancers sit directly on top of your existing burners. They work by deflecting the grease from the burners to the drip tray. Flavor Enhancers also work to distribute the heat across the grilling surface. They work by pushing the heat away from the burner. Flavor Enhancers are the single best upgrade that you can do to an older model LazyMan.