{"product_id":"ground-shaker-gs-ngmp28b","title":"Ground Shaker GS-NGMP28B","description":"\u003cdiv class=\"product-overview\"\u003e  \u003cdiv class=\"row text-center\"\u003e  \u003cdiv class=\"col-xs-12\"\u003e\u003ca href=\"..\/..\/brands\/Ground_Shaker_711.aspx\"\u003e\u003cimg class=\"img-fluid\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/div\u003e  \u003c\/div\u003e  \u003chr\u003e  \u003cdiv class=\"col-xs-12 col-md-12 text-center\"\u003e\n\u003c!-- BRAND  MODEL NAME Short Desc --\u003e  \u003ch3\u003eGround Shaker GS-NGMP28B 8\" Black Dual Ported Sub Box for 1999-2006 \u0026amp; 2007 Classic GMC Sierra Ext-Cab\u003c\/h3\u003e  \u003c\/div\u003e  \u003c!-- WHAT'S INSIDE --\u003e  \u003cdiv class=\"row align-items-center h-100 mt-5\"\u003e  \u003cdiv class=\"col-12 col-md-6 text-center\"\u003e\n\u003cimg class=\"img-fluid\" alt=\"\"\u003e  \u003cp\u003eWe are an \u003cstrong\u003eGround Shaker\u003c\/strong\u003e authorized dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!\u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"col-12 col-md-6 mx-auto\"\u003e\n\u003c!-- TITLE --\u003e  \u003ch5 class=\"mt-0 ms-view-center\"\u003eWhat's Inside?\u003c\/h5\u003e  \u003cul\u003e  \u003cli\u003e• 8\" Black Dual Ported Sub Box\u003c\/li\u003e  \u003cli\u003e• Owner's Manual\u003c\/li\u003e  \u003c\/ul\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c!-- END WHAT'S INSIDE --\u003e \u003c!-- RIGHT --\u003e  \u003cdiv class=\"row align-items-center h-100\"\u003e  \u003cdiv class=\"col-12 col-md-5\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/www.onlinecarstereo.com\/CarAudio\/assets\/ProductImages\/GS-NGMP28B_2.jpg\" alt=\"Kicker_KM\"\u003e\u003c\/div\u003e  \u003cdiv class=\"col-12 col-md-7 mx-auto\"\u003e\n\u003c!-- TITLE --\u003e  \u003ch5 class=\"mt-0 ms-view-center\"\u003eDual-Ported Bass Power\u003c\/h5\u003e  \u003c!-- PARAGRAPH BODY --\u003e  \u003cp\u003eThis dual-port subwoofer enclosure features a 7 1\/8\" cutout diameter and two individual chambers, each with 0.81 ft³ of air volume for deep, rich bass. Tuned at 36 Hz with two precision slot ports, it delivers powerful low-end performance that fills your vehicle with clear, punchy sound. Weighing just 39 lbs with a 6 3\/4\" mounting depth, it offers easy installation without compromising space.\u003c\/p\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c!-- END RIGHT --\u003e \u003c!-- LEFT --\u003e  \u003cdiv class=\"row align-items-center h-100\"\u003e  \u003cdiv class=\"col-12 col-md-7 order-12 order-md-1 mx-auto\"\u003e\n\u003c!-- TITLE --\u003e  \u003ch5 class=\"mt-0 ms-view-center\"\u003ePerfect Fit, Maximum Bass\u003c\/h5\u003e  \u003c!-- PARAGRAPH BODY --\u003e  \u003cp\u003eMeasuring 8 1\/4\" in height, 54 1\/4\" in length, and 13 1\/2\" in depth, this dual-port subwoofer enclosure fits perfectly under your vehicle’s rear seat for a clean, factory-style look. Its spacious internal design maximizes airflow, producing deeper, richer bass for an immersive audio experience. Engineered for both convenience and performance, it delivers powerful sound without taking up valuable cabin space.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003c\/div\u003e  \u003cdiv class=\"col-12 col-md-5 order-1 order-md-12\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/www.onlinecarstereo.com\/CarAudio\/assets\/ProductImages\/GS-NGMP28B_4.jpg\" alt=\"Kicker_KM\"\u003e\u003c\/div\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c!-- END-LEFT --\u003e \u003c!-- RIGHT --\u003e  \u003cdiv class=\"row align-items-center h-100\"\u003e  \u003cdiv class=\"col-12 col-md-5\"\u003e\u003cimg class=\"img-fluid\" src=\"https:\/\/www.onlinecarstereo.com\/CarAudio\/assets\/ProductImages\/GS-NGMP28B_5.jpg\" alt=\"Kicker_KM\"\u003e\u003c\/div\u003e  \u003cdiv class=\"col-12 col-md-7 mx-auto\"\u003e\n\u003c!-- TITLE --\u003e  \u003ch5 class=\"mt-0 ms-view-center\"\u003eDurable Build, Deep Bass\u003c\/h5\u003e  \u003c!-- PARAGRAPH BODY --\u003e  \u003cp\u003eCrafted from 5\/8\" high-quality MDF wood, this dual-port subwoofer enclosure is built to last while providing a solid foundation for powerful sound. The rugged trunk liner carpet finish, sealed with premium Titebond silicone and glued with Titebond wood glue, ensures an airtight design for rich, distortion-free bass. With 2 binding post terminals, it delivers secure connections and consistent, high-performance audio every time.\u003c\/p\u003e  \u003c\/div\u003e  \u003c\/div\u003e  \u003c!-- END RIGHT --\u003e","brand":"Ground Shaker","offers":[{"title":"Default Title","offer_id":68104522956949,"sku":"GS-NGMP28B","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/5088\/7573\/files\/GS-NGMP28B_1.jpg?v=1793307798","url":"https:\/\/caraudiogarage.com\/products\/ground-shaker-gs-ngmp28b","provider":"CarAudioGarage.com","version":"1.0","type":"link"}