aFe Large Bore-HD 5-Inch DPF-Back Exhaust System with Polished Tip for 2020–2023 GM 6.6L Duramax L5P Diesel Trucks – 49-44125-P

This DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 6" diameter polished 304 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a unique style. Some cutting may be required, see instruction sheet for further information. Utilizing factory style hangers this system mounts directly to factory mounting locations for a hassle-free installation. Utilizing state-of-the-art computer-aided design technology, this exhaust system is designed for custom, high tolerance factory fitment. 100% MIG-Welded for race-proven strength and durability. This system fits: Double Cab / Short-Bed - 149.4" Wheelbase, Crew Cab / Short-Bed - 158.9" Wheelbase, Double Cab / Long-Bed - 162.4" Wheelbase, Crew Cab / Long-Bed - 172" Wheelbase Large Bore-HD 5 IN 409 Stainless Steel DPF-Back Exhaust System w/Polished Tip GM Diesel Trucks 20-23 V8-6.6L (td) L5P

• 6" Diameter Polished 304 Stainless Steel Intercooled Clamp-On Exhaust Tip
• All Necessary Hardware is Included for a Hassle-Free Installation
• Constructed from 5" Mandrel-Bent 409 Stainless Steel Tubing
• Utilizes Factory Style Hangers for a Secure Fit
• 100% MIG-Welded for Strength and Durability

Upgrade the exhaust system on your 2020–2023 Chevrolet Silverado or GMC Sierra 2500 HD or 3500 HD with the aFe Large Bore-HD DPF-back exhaust system, part number 49-44125-P. Designed for GM trucks equipped with the 6.6L Duramax V8 L5P diesel engine, this system replaces the exhaust components behind the diesel particulate filter while retaining the factory emissions equipment.

Constructed from 5-inch mandrel-bent 409 stainless steel tubing, the system provides strong, durable performance and consistent exhaust flow. A polished 6-inch 304 stainless steel intercooled clamp-on tip adds a finished appearance and features a riveted aFe POWER logo plate. The exhaust is 100% MIG-welded for dependable strength and uses factory-style hangers to mount securely to the original mounting locations.

Computer-aided design supports precise, high-tolerance fitment for a direct installation using the included hardware. Some cutting may be required; consult the installation instructions before beginning work. This exhaust system fits Double Cab and Crew Cab configurations with short-bed and long-bed wheelbases, including 149.4-inch, 158.9-inch, 162.4-inch, and 172-inch applications. It is compatible with select 2020–2023 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD trucks. This product is not CARB approved, and California emissions compliance should be verified before installation.

Key Product Specifications & Technical Data

• Brand: aFe POWER
• Part Number: 49-44125-P
• System Type: DPF-back exhaust system
• Engine Application: 6.6L Duramax V8 L5P diesel
• Exhaust Tubing: 5-inch mandrel-bent 409 stainless steel
• Exhaust Tip: Polished 304 stainless steel intercooled clamp-on tip
• Construction: 100% MIG-welded
• Installation: Factory-style hanger mounting with included hardware

What's Included

The box includes the aFe Large Bore-HD DPF-back exhaust components, polished stainless steel exhaust tip, mounting hardware, and installation components. Review the included instructions for application details and cutting requirements.

Features:

• 5-inch 409 stainless steel mandrel-bent tubing provides durable construction and consistent exhaust flow.
• Polished 6-inch 304 stainless steel intercooled clamp-on tip delivers a finished appearance with an aFe POWER logo plate.
• Factory-style hangers mount the system to original locations for a secure, hassle-free installation.
• 100% MIG-welded construction and computer-aided design provide strong, precise, high-tolerance fitment.

Fitments:
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
2023 Chevrolet Silverado 2500 HD Custom
2023 Chevrolet Silverado 2500 HD High Country
2023 Chevrolet Silverado 2500 HD LT
2023 Chevrolet Silverado 2500 HD LTZ
2023 Chevrolet Silverado 2500 HD WT
2023 Chevrolet Silverado 3500 HD High Country
2023 Chevrolet Silverado 3500 HD LT
2023 Chevrolet Silverado 3500 HD LTZ
2023 Chevrolet Silverado 3500 HD WT
2023 GMC Sierra 2500 HD AT4
2023 GMC Sierra 2500 HD Denali
2023 GMC Sierra 2500 HD Pro
2023 GMC Sierra 2500 HD SLE
2023 GMC Sierra 2500 HD SLT
2023 GMC Sierra 3500 HD AT4
2023 GMC Sierra 3500 HD Denali
2023 GMC Sierra 3500 HD Pro
2023 GMC Sierra 3500 HD SLE
2023 GMC Sierra 3500 HD SLT
2024 Chevrolet Silverado 2500 HD Custom
2024 Chevrolet Silverado 2500 HD High Country
2024 Chevrolet Silverado 2500 HD LT
2024 Chevrolet Silverado 2500 HD LTZ
2024 Chevrolet Silverado 2500 HD WT
2024 Chevrolet Silverado 2500 HD ZR2
2024 Chevrolet Silverado 3500 HD High Country
2024 Chevrolet Silverado 3500 HD LT
2024 Chevrolet Silverado 3500 HD LTZ
2024 Chevrolet Silverado 3500 HD WT
2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2024 GMC Sierra 2500 HD Denali
2024 GMC Sierra 2500 HD Denali Ultimate
2024 GMC Sierra 2500 HD Pro
2024 GMC Sierra 2500 HD SLE
2024 GMC Sierra 2500 HD SLT
2024 GMC Sierra 3500 HD AT4
2024 GMC Sierra 3500 HD Denali
2024 GMC Sierra 3500 HD Denali Ultimate
2024 GMC Sierra 3500 HD Pro
2024 GMC Sierra 3500 HD SLE
2024 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: true
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1