Grand Rock - 2003-Newer Peterbilt 379 8" Duplex Chrome OE Fit Exhaust Stack Kit

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Grand Rock - 2003-Newer Peterbilt 379 8" Duplex Chrome OE Fit Exhaust Stack Kit The Grand Rock - 2003 & Newer Peterbilt 379 8" Duplex Chrome OE Fit Exhaust Stack Kit (8PK-5655OE) i s designed to deliver a premium factory-style upgrade with bold, head-turning appeal. Specifically engineered for 2003 and newer Peterbilt 379 models, this kit provides an OE-style fit that integrates seamlessly with your truck's existing setup. The 8-inch duplex stacks create a commanding presence while maintaining the clean lines and classic look that the 379 is known for. Crafted from high-quality materials and finished in a brilliant chrome polish, these exhaust stacks are built for both durability and long-lasting shine. The duplex configuration enhances the truck's symmetry and visual impact while supporting proper exhaust flow. Whether you're replacing worn components or upgrading for a more aggressive stance, this Grand Rock exhaust stack kit offers dependable performance, precise fitment, and show-quality styling. Designed for 2003 and newer Peterbilt 379 models 8" duplex (dual) stack configuration OE-style fit for seamless installation High-polish chrome finish for lasting shine Heavy-duty construction for long service life 8PK-5655OE Still looking for the perfect part? Having trouble finding it?Call our product experts at 603-224-7370‚ and let us lend a hand. Show more