The aFe Large Bore-HD DPF-back exhaust system replaces the factory exhaust behind the diesel particulate filter on 2024 GM Silverado and Sierra 2500 HD/3500 HD trucks with the 6.6L Duramax turbo diesel. It uses 5 inch mandrel-bent stainless steel tubing with a single rear exit and a 7 inch black tip to lower exhaust restriction while retaining the factory DPF.
- Type: Large Bore-HD DPF-back exhaust system
- Tubing: 5 in mandrel-bent stainless steel
- Exit: single rear exit with 7 in black tip
- Retains the factory diesel particulate filter (DPF)
- Application: 2024 GM Silverado/Sierra 2500 HD/3500 HD 6.6L Duramax
- Part number: 49-44147-B
Vehicle Applications
- 2024 Chevrolet Silverado 2500 HD/3500 HD, 6.6L Duramax Turbo Diesel
- 2024 GMC Sierra 2500 HD/3500 HD, 6.6L Duramax Turbo Diesel
FAQ
What is the aFe 49-44147-B?
It is a Large Bore-HD 5 inch stainless DPF-back exhaust system with a 7 inch black tip.
What does it fit?
It fits 2024 GM Silverado and Sierra 2500 HD/3500 HD trucks with the 6.6L Duramax turbo diesel.
Does it keep the DPF?
Yes. It is a DPF-back system that retains the factory diesel particulate filter.
Is this a genuine aFe part?
Yes. It is genuine aFe part number 49-44147-B.

