Banks Power Monster Cat-Back Exhaust System 20172019 Chevy/GMC Duramax 6.6L L5P 2500/3500HD

Unleash better flow and a tougher exhaust note with the Banks Power Monster Cat-Back Exhaust System, built for Duramax L5P 2500/3500HD applications. Designed to improve exhaust efficiency, this performance cat-back helps reduce restriction compared to factory systems while delivering the quality and fitment Banks is known for.

Key Features

• 5" mandrel-bent tubing for smoother, high-volume exhaust flow
• Patented Negative Backpressure SideKick tip to help evacuate exhaust gases
• Up to 85% less backpressure than stock (as stated by Banks)
• Up to 15% lower exhaust exit temperatures (as stated by Banks)
• Large polished chrome tip for a clean, aggressive finish

Vehicle Fitment

Check your vehicle details before ordering.

Fitment disclaimer: Compatibility can vary by cab/bed length and other options—confirm your exact vehicle specs before purchase.

Benefits

• Improved exhaust flow to support performance upgrades
• Reduced restriction versus factory exhaust for more efficient operation
• Durable construction designed for heavy-duty diesel use
• Enhanced appearance and a more purposeful exhaust tone

Why Buy From Us

• NZ & AU-focused support for local buyers
• Trusted performance brands and straightforward product info
• Fast, careful dispatch and secure packaging
• Help from an auto parts team that understands fitment questions