The Grand Rock GMC Brigadier & Astro 5 Inch Muffler is a practical and reliable choice for GMC Brigadier and Astro models. With its aluminized construction and stainless steel options available, this muffler offers durability and longevity. Its 5" ID inlet and outlet diameters, along with a 10" body diameter and 44.5" body length, ensure optimal performance. The overall length of 48.25" and inlet offset/clock position of 5.5"/6 make it a perfect fit. For more information on stainless steel options, contact us. Trust the Grand Rock GMC Brigadier & Astro 5 Inch Muffler for a dependable and efficient exhaust system solution.