aFe DPF-Back Exhaust 17-19 GM Silverado/Sierra 6.6L Duramax
⚠ Call for Availability
This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$967.00
Regular price
-7%
$1,034.23
Sale price
$967.00
Oversized Item
This item ships by freight. Shipping isn't calculated at checkout — we'll contact you with a freight quote after your order is placed.
Verified Fitment & Application Support
This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.
Got Questions? Feel free to email us or call us at (503) 235-1947
Compliance & Restrictions
California Proposition 65 (Prop 65)
WARNING: This product can expose you to chemicals which is known to the State of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
CARB / California Emissions Compliance
This item may be restricted in California and other regions with emissions regulations. If applicable, it is intended for
competition/off-road use only unless otherwise stated. It is the customer’s responsibility to confirm local compliance before purchase.
Orders shipping to restricted areas may be canceled.
The aFe POWER DPF-Back Exhaust System (part number 49-44089-B) is engineered as a direct-fit upgrade for the 2017 GM 6.6L Duramax.
Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance This exhaust system is constructed of 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. 5" Diameter Black Intercooled Tips: Finishing off the exhaust are 5" diameter, Hi-Temp black, stainless steel straight cut tips with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style. **Cutting stock exhaust is required.
Vehicle Fitment
- 2017 - 2019 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2017 - 2019 Chevrolet Silverado 3500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 2500 HD 6.6L Duramax
- 2017 - 2019 GMC Sierra 3500 HD 6.6L Duramax
Features & Benefits
- Engineered and tested by aFe POWER
- Direct-fit replacement requiring no permanent modification
Specifications
- Brand: aFe POWER
- Manufacturer Part Number: 49-44089-B
- SKU: afe49-44089-B
- Part Type: DPF-Back Exhaust System
- Engine Code: L5P
Always verify aFe POWER part number 49-44089-B against your vehicle's year, engine, and configuration before ordering.
Shipping Height: 13.0
Shipping Length: 49.0
Shipping Width: 23.0