The Q Power GMC122014DCAB is a custom-fit dual 12-inch subwoofer enclosure designed specifically for 2014–2019 GMC Sierra and Chevrolet Silverado Double Cab trucks. Engineered for under-seat down-firing installation, this enclosure delivers powerful low-frequency bass performance while preserving rear-seat cabin space and maintaining a clean OEM-style appearance. Built from durable MDF wood and wrapped in premium charcoal automotive carpet, the GMC122014DCAB is ideal for truck owners wanting strong bass output without sacrificing practicality Features & Highlights Custom-fit dual 12-inch subwoofer enclosure Designed for 2014–2019 GMC Sierra & Chevy Silverado Double Cab trucks Under-seat down-firing design Preserves usable rear-seat cabin space Premium charcoal automotive carpet finish Durable MDF wood construction Down-fire design helps protect subwoofers from cargo damage Designed for powerful low-frequency bass response Compatible with most shallow-mount 12-inch subwoofers OEM-style fitment and appearance No major vehicle modifications required on most applications Specifications Specification Details Enclosure Type Dual 12" Sealed Down-Firing Vehicle Fitment 2014–2019 GMC Sierra / Chevy Silverado Double Cab Subwoofer Size Dual 12-Inch Configuration Under-Seat Downfire Material MDF Wood Construction Finish Premium Charcoal Carpet Air Space 0.55 cu. ft. per subwoofer Mounting Depth 5.5" Enclosure Style Sealed Speaker Compatibility Most Shallow-Mount 12" Subwoofers Installation Location Under Rear Seat Application Truck Audio Systems Compatible Vehicle Applications 2014 GMC Sierra Double Cab 2015 GMC Sierra Double Cab 2016 GMC Sierra Double Cab 2017 GMC Sierra Double Cab 2018 GMC Sierra Double Cab 2019 GMC Sierra Double Cab 2014 Chevrolet Silverado Double Cab 2015 Chevrolet Silverado Double Cab 2016 Chevrolet Silverado Double Cab 2017 Chevrolet Silverado Double Cab 2018 Chevrolet Silverado Double Cab 2019 Chevrolet Silverado Double Cab ⚠️ Does NOT fit Crew Cab models