The Metra Electronics Ballistic Series Door Kit (SSDK) is a high performance sound damping solution designed to reduce vibrations, eliminate rattles, and improve overall audio quality in your vehicle. Built with a proprietary butyl rubber composite and an aluminum constraining layer, it is engineered to convert unwanted vibration into thermal energy for a quieter and more refined driving experience. This easy peel and stick material conforms smoothly to sheet metal and other hard surfaces, making installation simple while delivering professional level results. The new jet black finish with a silver logo adds a clean, modern look during installation. Each kit includes four 12 inch by 36 inch sheets, providing a total coverage of 12 square feet, making it ideal for door applications and targeted sound improvement. With a durable 2.2mm total thickness, it is resistant to water and mineral oils and performs reliably across a wide temperature range from minus 65°F to 300°F. Designed to also enhance sound system performance by boosting SPL and tightening audio response, this door kit is a great upgrade for anyone looking to improve both comfort and sound quality in their vehicle.
