The Fox Acoustics GM-CC-212-S-07 is a premium under-seat sealed subwoofer enclosure designed specifically for 2007+ Chevrolet Silverado and GMC Sierra Crew Cab trucks. Built for dual 12-inch subwoofers, this enclosure is popular in high-end truck audio builds because it offers excellent fitment, durable construction, and strong musical bass response while still fitting under the rear seat. Key Features Fits 2007+ GM Crew Cab trucks Compatible with 1500 / 2500 / 3500 models Dual 12-inch sealed enclosure Under-seat OEM-style fitment Heavy-duty MDF construction Black Line-X bedliner coating 2.1 cubic feet internal air volume 1.75" floor clearance Rear seat spacer kit included for 2014–2018 trucks Designed for deeper mounting subwoofers Subwoofer Specifications Woofer size: Dual 12" Mounting depth: 6.5" Maximum magnet diameter: 7" Sub cutout: 11.15" Enclosure type: Sealed Air volume: 2.1 ft³ total Vehicle Compatibility Chevrolet Silverado Crew Cab (2007+) GMC Sierra Crew Cab (2007+) 1500 / 2500 / 3500 platforms Crew Cab only Does NOT fit Extended / Double Cab models Performance NotesThis enclosure is best for: Tight, punchy bass SQL-style truck builds Customers already owning quality 12s Daily-driver systems wanting clean low-end response
