Upgrade your Duramax with the Banks Monster Exhaust System, engineered specifically for 2020-2023 Chevrolet Silverado HD and GMC Sierra HD trucks fitted with the 6.6L Duramax L5P. This premium 5-inch DPF-back exhaust replaces the restrictive factory system with a constant-diameter mandrel-bent exhaust that improves exhaust flow while retaining all factory emissions equipment.

Banks testing shows the Monster Exhaust reduces backpressure at the DPF by up to 89%, while lowering exhaust pressure at the turbocharger by approximately 9%. The result is improved turbo efficiency, sharper throttle response and more consistent performance when towing or hauling heavy loads.

The system also features Banks' patented SideKick exhaust tip, which directs hot regeneration gases away from trailers and caravans. During DPF regeneration, exhaust temperatures measured two feet behind the tip are reduced by up to 15%, helping minimise heat exposure to anything being towed.

Manufactured from heavy-duty 409 stainless steel and finished with a large Cerakote Black SideKick exhaust tip, the Banks Monster Exhaust delivers long-lasting durability, a premium appearance and an easy bolt-on installation.

Key Features

• Genuine Banks Monster Exhaust System
• 5-inch constant-diameter DPF-back exhaust
• 409 stainless steel construction
• Cerakote Black SideKick exhaust tip
• Up to 89% less backpressure at the DPF
• Approximately 9% less backpressure at the turbocharger
• SideKick tip lowers exhaust temperatures behind the tip by up to 15% during regeneration
• Mandrel-bent tubing for maximum flow
• Direct bolt-on installation
• Compatible with factory emissions equipment
• Genuine Banks Power product
• Part Number: 48997-B

Compatibility

Chevrolet

• Silverado 2500HD (2020-2023)
• Silverado 3500HD (2020-2023)

GMC

• Sierra 2500HD (2020-2023)
• Sierra 3500HD (2020-2023)

Engine

• 6.6L Duramax L5P Turbo Diesel

Fitment Notes

• Fits Single Rear Wheel (SRW) models only.
• Does not fit Dually (DRW) models.
• Does not fit Single Cab models.
• Fits Double Cab Short Bed, Double Cab Long Bed, Crew Cab Short Bed and Crew Cab Long Bed configurations.
• 5-inch DPF-back exhaust with Cerakote Black SideKick tip.
• Direct bolt-on installation using factory mounting points.

Exhaust will not fit late 2023 model year trucks. Beginning in mid-2023, GM updated the ECM which altered several the emisssion sensors including in the exhaust. You can check for this change by looking for dual sensors on the intake manifold.

Does Not Fit 2024 Model Year Trucks. Installing on a will result in a check engine light