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; Performance Connect (20-25 6.6L Gas Sierra 3500 HD)Find parts that fit my vehicle
Item SHG6868
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4 Reviews
Our Price
$2,409.20 kit
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Helps Boost Your Truck’s Horsepower and Torque
- Delivers a Deep Exhaust Tone
- Long Tube Headers
- Includes High-Flow Cats
- Built with a Mid-Pipe
- With 1-7/8-Inch Primary Tubes
- Comes with 3-Inch Diameter Collectors
- Made of 304 Stainless Steel
- Performance Connect
- Intended for Street Use
- Does Not Have a CARB EO Number
- No Tuning Is Required
- Designed 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
Superior Driving Performance. Simply adding these Stainless Works 1-7/8-Inch Catted Long Tube Headers with Performance Connect will help you elevate your truck’s street-driving performance. With these installed, your vehicle will be able to receive horsepower and torque boosts. Thanks to their 1-7/8-inch primary tubes, mid-pipe, and 3-inch diameter collectors, these headers can improve your truck’s exhaust flow which is one of the keys to achieving better engine combustion and greater power.
Deep Exhaust Sound. The addition of these long tube headers will help improve your truck’s exhaust sound. With these installed, you can transform your vehicle’s meek tone into a deeper and seemingly louder sound that catches the attention of everyone.
Includes High-Flow Cats. These long tube headers are equipped with high-flow cats. Catalytic converters enable your vehicle’s exhaust gases to flow at a higher rate, resulting in fewer restrictions and more power to your vehicle.
Durable Stainless Steel Construction. These catted long tube headers are manufactured using 304 stainless steel. With the durability of this material, the headers can resist the damaging effects of impacts and road debris. What’s more, this type of build lets these components exhibit high corrosion resistance.
No Tuning Is Required. These catted long tube headers don’t require any tuning. Simply mount them to your vehicle and they’re ready for use. However, make sure to check for any leaks or loose hardware by performing a test drive.
Application. These Stainless Works 1-7/8-Inch Catted Long Tube Headers with Performance Connect are designed 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 CT220HSTCAT
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 5.0 out of 5
Questions & Answers
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Will It Fit My Sierra 3500
- 6.6L V8 - 20, 21, 22, 23, 24, 25
