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; Performance Connect (20-24 6.6L Gas Sierra 2500 HD)
Item HG6626
Sierra 2500 Sales Techs:
Connect Now
M-F 8:30A-11P, Sat-Sun 8:30A-9P
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Our Price
$2,409.20 (kit)
FREE Shipping Market Price $2,770.99 You Save 13% ($361.79) Up to 10% off for Military & First Responders! See DetailsWill this fit your Vehicle?
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Ship to: Columbus - 43215
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Engineered to Increase Horsepower and Torque
- Emits an Impressive Exhaust Sound
- Features a Long Tube Header Design
- Free Flowing TIG-Welded Tubing
- Remarkably Durable 304 Stainless Steel Construction
- Calibration Required for Operation
- Fits All 2020-2024 6.6L Gas GMC Sierra 2500 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
Impressive Performance. Command the streets and trails with the exceptional performance that these Stainless Works Performance Connect 2-Inch Catted Long Tube Headers provide. They feature a design that promotes superb exhaust flow that increases power, so you can easily outperform the vehicles on the road.
Superb Racing Sound. The high-flow design of these Long Tube Headers promotes unrestricted exhaust flow. This design lets sound vibration flow out of the vehicle more freely, producing a mildly louder sound that is guaranteed to wow the crowd.
Outstanding Cats. These Long Tube Headers equip your truck with high-flow catalytic converters. They are engineered to work better than the restrictive factory cats, giving you impressive performance during intense driving conditions.
Premium-Level Quality. These Long Tube Headers are built to provide years of durability and reliable service. They are manufactured using premium-level 304 stainless steel with a corrosion-resistant natural finish. They are also precision-engineered and TIG-welded to provide a perfect fit and added durability.
Requires Calibration. Installing these Long Tube Headers requires reprogramming of your vehicle’s ECU to ensure optimized performance. This allows you to take advantage of the full potential of these headers.
Application. These Stainless Works Performance Connect 2-Inch Catted Long Tube Headers are designed for use on all 2020-2024 6.6L Gas GMC Sierra 2500 HD models.
Fitment:
- 2020 GMC Sierra 2500
- 2021 GMC Sierra 2500
- 2022 GMC Sierra 2500
- 2023 GMC Sierra 2500
- 2024 GMC Sierra 2500
Stainless Works CT220HCAT
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) Headers
- (2) Header Gaskets
- Installation Hardware
Questions & Answers
10 More Questions
Will It Fit My Sierra 2500
- 6.6L V8 - 20, 21, 22, 23, 24
