Grand Rock - 1994-2002 Peterbilt 379 Retro Fit Duplex Chrome Exhaust Kit w/ Offset Brackets

Grand Rock - 1994-2002 Peterbilt 379 Retro Fit Duplex Chrome Exhaust Kit w/ Offset Brackets

The Grand Rock – 1994–2002 Peterbilt 379 Retro Fit Duplex Chrome Exhaust Kit w/ Offset Brackets is a complete aftermarket exhaust solution designed to upgrade older Peterbilt rigs with a premium duplex stack setup. Specifically engineered to fit 1994–2002 Peterbilt 379 models, this retrofit kit allows owners to replace or enhance the original exhaust configuration with a stylish and functional chrome duplex system. The polished chrome finish not only elevates the truck’s visual appeal but also provides robust resistance against rust, corrosion, and the environmental wear common on long-haul routes. Whether you’re restoring a classic truck or customizing your ride for show and performance, this kit delivers both form and function.

In addition to its eye-catching appearance, this retrofit kit includes offset brackets that ensure proper alignment and clearance for the dual stacks, especially on models where factory mounting points may not accommodate a traditional duplex layout. The comprehensive kit comes complete with picket-style 90° elbows, 52" spool pipes, lower cab brackets, stack mount brackets, protective grommets, and Grand Rock’s premium pre-formed WFC-5Ss clamps—providing everything needed for a secure, leak-resistant installation. Built with durability and ease of assembly in mind, this kit is ideal for fleet service, professional installers, or experienced DIY truck owners looking for a dependable upgrade.

• Designed specifically for 1994–2002 Peterbilt 379 models

• Includes offset brackets for correct stack alignment and clearance

• Complete kit with chrome picket-style 90° elbows and 52" spool pipes

• Comes with lower cab brackets, stack mount brackets, and grommets

• Premium pre-formed WFC-5Ss clamps included for secure, leak-resistant connections

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Our online freight shipping prices are estimates and may fluctuate due to factors such as package size, weight, destination, and current carrier rates. Because of these variables, the most accurate and cost-effective shipping options are often best determined through direct communication with our knowledgeable parts team. We encourage customers to call us for a personalized quote to ensure they receive the most reliable pricing and delivery options for their specific order. Orders online may be subject to additional charges or refunds due to discrepancies in freight carrier costs.

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Berube’s Truck Accessories
Attn: Privacy Compliance Officer
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(603) 224-7370
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Defective Products: 

Returns of defective products will receive replacement product in accordance to Manufacturer policy.

Non-Defective Products:

Returns of non-defective products must be in new resalable condition.
     - Stainless Steel Items: Stainless steel items must NOT have their protective laser film removed to qualify for a refund under Berube's return policy.

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• Returns up to 30 days from the date of purchase will be eligible for a 100% refund or store credit.
• Returns 31 - 90 days from the date of purchase will be subject to a 20% restocking fee.
• Returns over 90 days will be at the discretion of Berube’s Truck Accessories and be subject to a  25% or more restocking fee.
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Special Orders:

Cancellation of special orders may be subject to loss of deposit. Returns of special orders are not accepted unless product is defective.