Dynamat Xtreme Sounds Deadener 20 Sqft Trunk Kit

The Dynamat Xtreme Trunk Kit (SKU: 19405) is a model-specific acoustic optimization package engineered to maximize the output, clarity, and Sound Pressure Level (SPL) of high-powered car audio subwoofer systems. When high-output subwoofers fire inside an untreated trunk, they force the lightweight rear body panels, trunk lid, and license plate area to flex and vibrate violently. This panel distortion cancels out your bass frequencies and wastes precious amplifier energy by turning it into structural rattles.

By treating these problematic rear metal zones with Dynamat Xtreme, structural panel flex is completely neutralized. Tests show that stabilizing these surfaces is the acoustic equivalent of upgrading your amplifier power—restoring lost SPL and delivering crisp, punchable bass without any of the muddy exterior trunk rattle.

Advanced Elastomeric Constrained-Layer Engineering

• High-Efficiency Vibration Absorption: Constructed with a premium, self-adhesive butyl-elastomeric core that targets structural panel resonance. It converts raw mechanical vibration into silent thermal energy, completely removing the signature "hollow buzz" of vibrating sheet metal.

• Pure Butyl Base Compound: Formulated with 100% pure butyl rubber, completely avoiding the cheap asphalt fillers found in lesser products. This ensures the mat will not run, melt, peel loose, or release chemical odors when subjected to baking trunk temperatures.

• 4-Mil Aluminum Armor Facing: Shielded by a tough, 4-mil thick embossed aluminum constraining layer. This metal skin adds structural integrity to the flexible butyl core and works as an effective radiant thermal barrier for the rear cargo area.

Multi-Vehicle Tailored Real Estate

The 20 square foot configuration provides the ideal footprint to treat the primary acoustic reflection points across several body styles:

• Coupes & Sedans: Covers the trunk lid skin, trunk floor pan center, and the structural rear speaker package shelf to keep bass energy reflecting into the cabin.

• Hatchbacks & Small SUVs: Perfectly seals and insulates the rear cargo floor area and lower quarter panel cavities to block heavy exhaust drone.

• Pickup Trucks: Provides the exact footprint needed to line the wide back wall of a single-cab or extended-cab truck to stop rear cab panel flex.

Technical Specification Matrix

🛠️ Installation Best Practice: To ensure an permanent bond that can withstand heavy subwoofer vibration, clean the target trunk sheet metal with a fast-evaporating solvent (like denatured alcohol) to strip away old factory adhesive or trunk floor dust. Peel away the release liner and work the mat into the complex trunk floor ribs using a solid rubber or wooden Dynamat Application Roller to completely flatten out air pockets and maximize surface adhesion.