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This item may be on backorder. Please contact us to confirm supplier availability and estimated lead time before ordering.
Regular price
$1,099.00
Regular price
-20%
$1,373.75
Sale price
$1,099.00
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 Exhaust Header (part number 48-34145) is engineered as a direct-fit upgrade for the 2020-2023 2500/3500 6.6L Duramax.
1-3/4" 304 Stainless Steel Construction: This system is constructed of 1-3/4" mandrel-bent 304 stainless steel tubing for maximum strength and durability. Powerful Sound: This system produces a powerful sound unleashing all available horsepower and torque. Installation: Utilizing factory style flanges this system is a direct bolt-on system, which requires no cutting or modifications for a hassle-free installation. Heavy Duty Flanges: Factory style laser cut flanges are used used for a secure leak-free seal. Optimized Tube Lengths: Tube lengths are optimized for true pulse control technology which improves flow and performance. Retains Factory Sensors: This system has been designed to retain all your factory sensors for a hassle free installation. Computer-Aided Design: Utilizing state-of-the-art computer-aided design technology, this system is designed for custom, high tolerance factory fitment. MIG-Welded: 100% MIG-Welded for race-proven strength and durability. Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles. aFe POWER exhaust systems are engineered and manufactured in our Corona, California facility.
Vehicle Fitment
- 2020 - 2026 Chevrolet Silverado 2500 HD 6.6L Duramax
- 2020 - 2026 Chevrolet Silverado 3500 HD 6.6L Duramax
- 2020 - 2026 GMC Sierra 2500 HD 6.6L Duramax
- 2020 - 2026 GMC Sierra 3500 HD 6.6L Duramax
- 2021 - 2026 Chevrolet Express 2500 6.6L Duramax
- 2021 - 2026 Chevrolet Express 3500 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: 48-34145
- SKU: afe48-34145
- Part Type: Exhaust Header
Always verify aFe POWER part number 48-34145 against your vehicle's year, engine, and configuration before ordering.
Shipping Height: 7.0
Shipping Length: 23.2
Shipping Width: 14.4