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This aFe exhaust component is the Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Black Tip 20 GM Diesel Trucks V8-6.6L (td) L5P for 2021-2026 Chevrolet Silverado 2500 HD. Verify body style, engine, drivetrain, wheelbase or cab-and-bed configuration, pipe diameter, connection point, tip finish, emissions status, and required hardware.
Key Features
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2021-2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2020-2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2020-2026 | Chevrolet | Silverado 2500 HD | LT |
| 2020-2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020-2026 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2020-2026 | Chevrolet | Silverado 3500 HD | High Country |
| 2020-2026 | Chevrolet | Silverado 3500 HD | LT |
| 2020-2026 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020-2026 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2026 | GMC | Sierra 2500 HD | AT4 |
| 2024-2026 | GMC | Sierra 2500 HD | AT4X |
| 2020-2021 | GMC | Sierra 2500 HD | Base |
| 2020-2026 | GMC | Sierra 2500 HD | Denali |
| 2024-2026 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2026 | GMC | Sierra 2500 HD | Pro |
| 2020-2026 | GMC | Sierra 2500 HD | SLE |
| 2020-2026 | GMC | Sierra 2500 HD | SLT |
| 2020-2026 | GMC | Sierra 3500 HD | AT4 |
| 2020-2021 | GMC | Sierra 3500 HD | Base |
| 2020-2026 | GMC | Sierra 3500 HD | Denali |
| 2024-2026 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2026 | GMC | Sierra 3500 HD | Pro |
| 2020-2026 | GMC | Sierra 3500 HD | SLE |
| 2020-2026 | GMC | Sierra 3500 HD | SLT |
Specifications
| Brand | aFe Power |
|---|---|
| Manufacturer Part Number | 49-44126-B |
| Product Type | DPF Back |
| Condition | New |
| Configuration | Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Black Tip 20 GM Diesel Trucks V8-6.6L (td) L5P |
| Listed Dimension | 4in |
What's Included
One new aFe dpf back in the exact configuration and quantity identified by this listing. Hardware, clamps, couplers, gaskets, sensors, wiring, fluids, calibration, and accessories are included only when expressly stated.
About aFe Power
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Important Disclosures
Related Parts
Frequently Asked Questions
Will the Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Black Tip 20 GM Diesel Trucks V8-6.6L (td) L5P fit my 2021-2026 Chevrolet Silverado 2500 HD (aFe 49-44126-B)?
Match the complete vehicle, engine, drivetrain, cab and bed or wheelbase, body style, factory connection point, and any listed exclusions.
Does installation require cutting or welding?
Requirements depend on the exact system and vehicle. Review aFe's current instructions before disassembly; some configurations are bolt-on while others require trimming or professional fabrication.
Will this exhaust change sound level?
Sound depends on system type, pipe diameter, resonators, mufflers, engine, and other modifications. Confirm the exact configuration and local sound requirements.
Does this exhaust retain required emissions equipment?
Only when the exact product is designed around the original catalysts, DPF, or other equipment. Confirm current emissions classification before installation.
Installation Instructions
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