Grand Rock - 2003-Newer Peterbilt 279 Retrofit Chrome Duplex Exhaust Kit

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Grand Rock - 2003-Newer Peterbilt 279 Retrofit Chrome Duplex Exhaust Kit The Grand Rock - 2003 & Newer Peterbilt 379 Retrofit Chrome Duplex Exhaust Kit (7PK-9055RF) is designed to provide a clean, professional upgrade for your truck's exhaust system. Engineered specifically for 2003 and newer Peterbilt 379 models, this retrofit kit allows you to convert to a striking dual exhaust setup while maintaining proper fitment and factory-style integration. The high-polish chrome finish delivers a bold, show-quality shine that enhances the overall appearance of your rig on the road or at truck shows. Built for durability and long-lasting performance, this duplex exhaust kit is constructed to handle the daily demands of heavy-duty trucking. Whether you're replacing worn components or upgrading for a more aggressive, symmetrical look, the Grand Rock retrofit kit offers reliable strength and corrosion resistance. It's an ideal choice for owner-operators and fleets seeking a balance of rugged functionality and premium styling. Designed for 2003 and newer Peterbilt 379 models Converts truck to a duplex (dual) exhaust configuration High-polish chrome finish for enhanced visual appeal Direct retrofit design for proper fitment Heavy-duty construction for long service life 7PK-9055RF 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