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 1-7/8-Inch Catted Long Tube Headers; Factory Connect (20-25 6.6L Gas Sierra 3500 HD)Find parts that fit my vehicle
Item SHG6867
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4 Reviews
Our Price
$2,298.05 kit
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Adds More Horsepower and Torque to Your Vehicle
- Generates a Deep Exhaust Sound
- Long Tube Headers
- With High-Flow Cats
- Comes with a Mid-Pipe
- With 1-7/8-Inch Primary Tubes
- Has 3-Inch Diameter Collectors
- Constructed Using 304 Stainless Steel
- Factory Connect
- Designed for Street Use
- Does Not Have a CARB EO Number
- No Tuning Is Required
- Engineered 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
Powerful Driving Performance. Make your truck an even more powerful vehicle by installing these Stainless Works 1-7/8-Inch Catted Long Tube Headers with Factory Connect. These exhaust components help elevate your truck’s driving performance by improving your vehicle’s exhaust flow. Featuring 1-7/8-inch primary tubes, mid-pipe, and 3-inch diameter collectors, these headers help your truck exhibit better engine combustion, resulting in higher horsepower and torque.
Deep Exhaust Sound. If you also want to improve your truck’s exhaust sound, then adding these long tube headers is a great idea. With these components added to your exhaust system, your vehicle will be able to generate a deep and attention-grabbing sound.
With High-Flow Cats. These long tube headers come with high-flow cats. These allow the exhaust gases to flow at a higher rate, resulting in fewer restrictions, more power, and optimized driving performance. Without a doubt, these high-flow cats will outperform your vehicle’s stock parts.
Made of Stainless Steel. For long-lasting performance, these long tube headers are constructed using 304 stainless steel. This material is known for its high corrosion resistance, allowing your new headers to withstand the corrosive effects of oils, chemicals, high heat, water, and other elements. What’s more, stainless steel is a relatively strong type of steel, letting the headers sport a more impact-resistant build.
No Tuning Is Required. These catted long tube headers don’t require any tuning. Simply bolt on these components to your vehicle’s existing points and you’re ready to go. However, it is recommended that you perform a test drive first.
Application. These Stainless Works 1-7/8-Inch Catted Long Tube Headers with Factory Connect are engineered 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 CT220HSTCATY
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 (4)
Reviews of Stainless Works Exhaust products have an average rating of 5 out of 5
Questions & Answers
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Will It Fit My Sierra 3500
- 6.6L V8 - 20, 21, 22, 23, 24, 25
