Grand Rock - 2003-Newer Peterbilt 379 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.
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Designed for 2003 and newer Peterbilt 379 models
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Converts truck to a duplex (dual) exhaust configuration
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High-polish chrome finish for enhanced visual appeal
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Direct retrofit design for proper fitment
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Heavy-duty construction for long service life
7PK-9055RF
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