2020-2025
2015-2019
2007-2014
Installation Time
(approx) 2 Hours
Difficulty Level:
Light to Moderate mechanical skill required.
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Stainless Works 2-Inch Catted Long Tube Headers; Factory Connect (20-25 6.6L Gas Sierra 3500 HD)Find parts that fit my vehicle
Item SHG6872
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$2,298.05 kit
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Increases Horsepower and Torque
- Produces a Deep Exhaust Sound
- Long Tube Headers
- Equipped with High-Flow Cats
- Includes a Mid-Pipe
- Has 2-Inch Primary Tubes
- With 3-Inch Diameter Collectors
- Made of Durable 304 Stainless Steel
- Factory Connect
- Intended for Street Use
- Does Not Have a CARB EO Number
- Tuning Is Not Required
- Created to Fit 2020-2025 6.6L Gas GMC Sierra 3500 HD Models
| Brand | Stainless Works |
| Headers Type | Long Tube Headers |
| Header Primary Size | 1.76-2.00 Inch |
| Header Collector Size | Stock Replacement |
| Header Finish | Polished |
Description
Boosts Your Truck’s Power. If you want more power for your truck, install these Stainless Works 2-Inch Catted Long Tube Headers with Factory Connect. These components help improve the exhaust flow of your vehicle with their mid-pipe crossover and 3-inch diameter collectors. With a better exhaust flow, your truck will be able to achieve more horsepower and torque for a more high-performance drive.
Deep Exhaust Sound. Simply adding these long tube headers will let your truck generate a head-turning sound. With these components, your vehicle will be able to generate a deeper exhaust sound that’s guaranteed to capture the attention of everyone.
With High-Flow Cats. To optimize your truck’s street-driving performance, these long tube headers come with high-flow cats. These components allow your vehicle’s exhaust gases to flow at a higher rate, resulting in fewer restrictions and more power.
Made of Stainless Steel. For extra durability, these catted long tube headers are manufactured using 304 stainless steel. This material is known for its high heat and chemical resistance, allowing your new long tube headers to withstand the extreme conditions of your vehicle’s exhaust system. Furthermore, a stainless steel build prevents these headers from easily rusting.
No Tuning Is Required. Once these long tube headers are mounted to your vehicle, they’re ready for use and don’t require any tuning. However, it is recommended that you perform a test drive first to check for leaks and any loose hardware.
Application. These Stainless Works 2-Inch Catted Long Tube Headers with Factory Connect are created to fit 2020-2025 6.6L Gas GMC Sierra 3500 HD models.
Fitment:
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
- 2024 GMC Sierra 3500
- 2025 GMC Sierra 3500
Stainless Works CT220HCATY
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) Catted Long Tube Header Assemblies
- Installation Hardware
5.0
Customer Reviews (1)
Reviews of Stainless Works Exhaust products have an average rating of 5.0 out of 5
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Will It Fit My Sierra 3500
- 6.6L V8 - 20, 21, 22, 23, 24, 25
