The GS-TOYCR212 is a custom behind-the-seat dual 12-inch sealed subwoofer enclosure built specifically for 2014–2021 Toyota Tundra CrewMax trucks. The biggest buying considerations are mounting depth, available airspace, seat clearance, and whether the customer wants a stealth OEM-style install or maximum output. The GS-TOYCR212 is one of the more popular Tundra CrewMax truck boxes because it maximizes woofer size while still fitting behind the rear seat. It’s designed as a sealed enclosure, which gives tighter and more accurate bass response compared to many prefab ported truck boxes. Key Features Fits 2014–2021 Toyota Tundra CrewMax Dual 12-inch subwoofer enclosure Sealed enclosure design Two individual sealed chambers Forward-firing subwoofer layout Behind rear-seat installation High-density MDF construction Carpeted or bedliner-finish versions available Heavy-duty binding post terminals Designed for shallow-to-mid-depth subwoofers Specifications Total air volume: 1.44 ft³ Air volume per woofer: 0.72 ft³ Mounting depth: Approx. 4.5"–4.75" Cutout diameter: 11 1/8" Dimensions: Width: 52.5" Height: 16" Top depth: 3.25" Bottom depth: 6.75" Installation Notes Fits behind rear seat Rear wall plastic trimming/removal may be required Rear seat removal required during installation Best with shallow or moderate-depth 12" subwoofers Not ideal for ultra-deep SPL woofers
