Upgrade your 2022+ Refresh GMC Sierra or Chevrolet Silverado CrewCab Truck with our Sound Treatment Packages. Our custom Block Off Plates and 3 levels of BlackHole MAT and Tiles will improve stereo performance and drastically reduce road noise. Choose the level that fits your needs - Level 1 (66 sqft), Level 2 (55 sqft), or Level 3 (44 sqft).