The Banks Power GBE48997-B Monster Exhaust System is engineered specifically for the 2020-2021 GM 6.6L Duramax L5P 2500 and 3500 HD pickup trucks. Featuring 5-inch mandrel-bent aluminized steel tubing, this system ensures superior exhaust flow and durability. The large patented 6.5 x 7.5-inch slash-cut exhaust tip, available in polished stainless steel or heat-resistant Cerakote black, provides a bold look that resists discoloration even under high temperatures.
The design significantly increases flow area—192 percent more than the stock 2.85-inch nozzle—delivering increased horsepower, torque, and improved fuel efficiency. The system boasts an 85 percent reduction in backpressure, which enhances engine performance and reduces stress on engine components.
A key feature of this exhaust system is its side exit design, which directs hot gases away from the trailer, reducing the risk of melting and enabling safer towing during regeneration cycles. During regen, exhaust temperatures are lowered by approximately 15 percent two feet behind the tip, helping to manage heat buildup and prolong component life. The Cerakote black tip maintains its appearance despite high heat, unlike traditional black coatings that tend to turn brown.
Installation considerations include compatibility with trucks equipped with aftermarket airbags, and it is designed for single rear wheel models. Please note that this system does not fit 2024 models, and installing it on such may trigger a check engine light. With its robust construction and performance enhancements, the Banks Power Monster Exhaust System is an ideal upgrade for Duramax owners seeking increased power, improved fuel economy, and a striking appearance.
Features:
- 5-inch mandrel-bent aluminized steel tubing for enhanced exhaust flow and durability
- Massive 6.5 x 7.5-inch slash-cut exhaust tip available in polished stainless steel or Cerakote black
- 192% greater flow area compared to stock exhaust nozzle for increased horsepower and torque
- 85% reduction in backpressure improves engine performance and fuel efficiency
- Side exit design directs hot gases away from trailers, reducing melting risk during regen
- Exhaust temperature lowered by 15% two feet behind the tip during regen to manage heat buildup
- Cerakote black tip resists discoloration and maintains appearance under high heat conditions
- Compatible with 2020-2021 Chevy and GMC 2500/3500 HD trucks with aftermarket airbags
- Not compatible with 2024 model year trucks, installation may trigger check engine light
Fitment:
2020 Chevrolet Silverado 2500 HD High Country
2020 Chevrolet Silverado 2500 HD LT
2020 Chevrolet Silverado 2500 HD LTZ
2020 Chevrolet Silverado 2500 HD WT
2020 Chevrolet Silverado 3500 HD High Country
2020 Chevrolet Silverado 3500 HD LT
2020 Chevrolet Silverado 3500 HD LTZ
2020 Chevrolet Silverado 3500 HD WT
2020 GMC Sierra 2500 HD AT4
2020 GMC Sierra 2500 HD Base
2020 GMC Sierra 2500 HD Denali
2020 GMC Sierra 2500 HD SLE
2020 GMC Sierra 2500 HD SLT
2020 GMC Sierra 3500 HD AT4
2020 GMC Sierra 3500 HD Base
2020 GMC Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD SLE
2020 GMC Sierra 3500 HD SLT
2021 Chevrolet Silverado 2500 HD Custom
2021 Chevrolet Silverado 2500 HD High Country
2021 Chevrolet Silverado 2500 HD LT
2021 Chevrolet Silverado 2500 HD LTZ
2021 Chevrolet Silverado 2500 HD WT
2021 Chevrolet Silverado 3500 HD High Country
2021 Chevrolet Silverado 3500 HD LT
2021 Chevrolet Silverado 3500 HD LTZ
2021 Chevrolet Silverado 3500 HD WT
2021 GMC Sierra 2500 HD AT4
2021 GMC Sierra 2500 HD Base
2021 GMC Sierra 2500 HD Denali
2021 GMC Sierra 2500 HD SLE
2021 GMC Sierra 2500 HD SLT
2021 GMC Sierra 3500 HD AT4
2021 GMC Sierra 3500 HD Base
2021 GMC Sierra 3500 HD Denali
2021 GMC Sierra 3500 HD SLE
2021 GMC Sierra 3500 HD SLT
2022 Chevrolet Silverado 2500 HD Custom
2022 Chevrolet Silverado 2500 HD High Country
2022 Chevrolet Silverado 2500 HD LT
2022 Chevrolet Silverado 2500 HD LTZ
2022 Chevrolet Silverado 2500 HD WT
2022 Chevrolet Silverado 3500 HD High Country
2022 Chevrolet Silverado 3500 HD LT
2022 Chevrolet Silverado 3500 HD LTZ
2022 Chevrolet Silverado 3500 HD WT
2022 GMC Sierra 2500 HD AT4
2022 GMC Sierra 2500 HD Base
2022 GMC Sierra 2500 HD Denali
2022 GMC Sierra 2500 HD SLE
2022 GMC Sierra 2500 HD SLT
2022 GMC Sierra 3500 HD AT4
2022 GMC Sierra 3500 HD Base
2022 GMC Sierra 3500 HD Denali
2022 GMC Sierra 3500 HD SLE
2022 GMC Sierra 3500 HD SLT
