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Find Headers for your Sierra 3500

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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$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

      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:

      Details

      Stainless Works CT220HSTCAT

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 2 Hours

      Difficulty Level:

      Light to Moderate mechanical skill required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (2) Catted Long Tube Header Assemblies
      • Installation Hardware
      5.0

      Customer Reviews (5)

      Review Summary

      5 Stars100%
      5 out of 5 overall ratings from 5 customers

      Feb 3, 2025

      Review shared from Stainless Works 1-7/8-Inch Catted Long Tube Headers (19-24 5.7L RAM 1500)

      5
      2020 Big Horn - ChuckC13
      Installation Time: Shop Install

      Long tube headers

      Headers were installed along with a new cam and ported heads. After a tune the truck is running strong. Definitely louder on start up and wide open. Would recommend if looking to swap out factory headers.

      Fit 5/5
      Quality 5/5
      Bang For Your Buck 4/5

      May 5, 2023

      Review shared from Stainless Works 1-7/8-Inch Catted Long Tube Headers (19-24 5.7L RAM 1500)

      5
      2019 Laramie - ElecTape
      Installation Time: Weekend

      Amazing Quality and Fit. Wow!

      Definitely worth it. Takes some effort if doing it yourself but everything fits really nicely together. Only suggestion is don't follow their measurement for cutting the exhaust tube length if you have an aftermarket exhaust. I cut the 9" off and it was too much. Luckily, I had additional SS pipe and was able to swap out.

      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5

      Apr 16, 2023

      Review shared from Stainless Works 1-7/8-Inch Catted Long Tube Headers (19-24 5.7L RAM 1500)

      5
      DeeSwayzee
      Installation Time: Afternoon

      So much better than expected

      I did the headers and cat back exhaust. Was a bit nervous due to the video on their website, I went with the louder mufflers and thought they were going to be too much. It's not at all. The idle is perfect and the full throttle is amazing!

      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5

      Nov 4, 2022

      Review shared from Stainless Works 1-7/8-Inch Catted Long Tube Headers (19-24 5.7L RAM 1500)

      5
      2020 Big Horn - Maxiii
      Installation Time: Afternoon

      Perfect, high quality

      Great Fitment. Very high quality. Install took me about 6.5 hours

      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5

      Jan 5, 2022

      Review shared from Stainless Works 1-7/8-Inch Catted Long Tube Headers (19-24 5.7L RAM 1500)

      5
      2021 Rebel - Filmnews
      Installation Time: Full Day

      Stainless Works Long Tubes

      I purchased this for my 2021 Ram Rebel. The install took about 12 hours, but it was worth every minute and dollar. The headers look amazing and I believe I picked up 20 HP.

      Fit 5/5
      Quality 5/5
      Bang For Your Buck 5/5
      Brand Image

      Reviews of Stainless Works Exhaust products have an average rating of 5.0 out of 5

      Nov 4, 2024

      Review shared from Stainless Works 2-Inch Catted Long Tube Headers; Factory Connect (20-25 6.6L Gas Sierra 2500 HD)

      5
      2021 - HankCD

      Bad Ass Headers

      Stainless Works Headers are the perfect addition to my 2021 2500HD AT4. The installation was a breeze. I will consider Stainless Works on any new pickup I purchase in the future.

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Sierra 3500

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            Word on the Trail

            They had the product I wanted and confirmed fitment with my truck. The price was great and had free 2-day shipping. So far very happy and will shop here again in the future.

            jerssmith01
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