Grand Rock - 03-Newer Peterbilt 379 Retro Fit Duplex Kit w/ Offset Brackets
Grand Rock - 03-Newer Peterbilt 379 Retro Fit Duplex Kit w/ Offset Brackets
The Grand Rock - 03-Newer Peterbilt 379 Retro Fit Duplex Kit w/ Offset Brackets is a precision-engineered exhaust solution designed specifically for 2003 and newer Peterbilt 379 models. This complete retrofit kit allows truck owners to upgrade from a single stack or worn OEM system to a full duplex setup with properly aligned dual exhaust stacks. With specially designed offset brackets, the kit ensures optimal stack placement and clearance around the cab and sleeper, delivering both a professional look and functional exhaust routing that enhances the overall appearance and performance of the truck.
Grand Rock's duplex retrofit kit is fully equipped with all necessary components for a straightforward installation and lasting durability. The kit includes picket-style 90° elbows and 52" spool pipes engineered for a smooth exhaust flow, along with robust lower cab brackets, stack mount brackets, and protective grommets to secure components and minimize vibration. Grand Rock's premium pre-formed WFC-5Ss clamps are also included, offering superior strength and a secure, leak-resistant connection. Whether you're restoring a classic rig or customizing a modern truck, this retrofit kit delivers reliability and a standout aesthetic.
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Designed for 2003 and newer Peterbilt 379 models for a perfect retrofit fit
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Includes offset brackets to ensure proper stack alignment and clearance
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Complete kit with picket-style 90° elbows and 52" spool pipes
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Comes with lower cab brackets, stack mount brackets, and protective grommets
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Equipped with high-quality pre-formed WFC-5Ss clamps for secure, leak-resistant connections
6PK-9055OSRF
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