Stainless Works 2020-21 Silverado HD 6.6L Redline Catback Black Tips (part # CT220CBR-B), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2020–23 Silverado HD 2500/3500
Catback Exhaust
Lifetime Warranty
Made in USA
Overview
Upgrade the exhaust on your 2020–23 Chevy Silverado or GMC Sierra HD 2500/3500 with a premium Legend or Redline catback exhaust from Stainless Works.
The Legend system is designed with the daily-driver in mind, improved tone with restrained loudness. A system that still gets the blood flowing, but allows for a comfortable ride.
We designed this Redline system to maximize the volume and tone of the engine, while still eliminating any drone in the cabin. Resulting in a feeling that will make you want to high-five your friends in the face.
This 3" exhaust features dual chambered mufflers with 4" matte black or polished slash-cut tips. Use the included Y-pipe for a bolt-on install to the factory manifolds or connect without the Y to our Long Tube Headers for a true dual system.
Built from corrosion-resistant 304 stainless steel and TIG welded at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term durability and performance.
Why Stainless Works
- American-made from raw material to finished product
- TIG welded by skilled craftsmen for strength and beauty
- Lifetime warranty on material and craftsmanship
- Direct bolt-on fit for 2020–23 Silverado/Sierra HD 6.6L
- Available in Legend or Redline sound profiles
Key Features
Legend or Redline Series
Choose your preferred sound profile — daily-driver refined or aggressive maximum volume.
3" Catback System
Full 3" diameter for maximum exhaust flow and performance.
Dual Chambered Mufflers
Delivers a deep, aggressive tone with a refined exhaust note.
4" Matte Black or Polished Tips
Slash-cut tips to match your Silverado/Sierra's style.
Includes Y-Pipe
Bolt-on install to factory manifolds or remove for true dual system.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2020–23 Chevy Silverado / GMC Sierra HD 2500/3500 6.6L Gas |
| System Type |
Catback Exhaust — Legend or Redline Series |
| Diameter |
3" |
| Muffler Type |
Dual Chambered |
| Exhaust Tips |
4" Slash-Cut — Matte Black or Polished |
| Connection Options |
Factory Manifolds (with Y-pipe) — or — Stainless Works Headers (without Y-pipe) |
| Drivetrain |
2WD & 4WD |
| Cab/Bed Compatibility |
All Cab & Bed Configurations — Some May Require Minor Trimming |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
Fitment Information
This catback system fits the 2020–23 Chevy Silverado / GMC Sierra HD 2500/3500 6.6L gas motor in the following configurations:
Compatible Configurations
✓ 2WD & 4WD Models
✓ All Cab & Bed Configurations
*Some configurations may require minor trimming
Connection Options
✓ Factory Manifolds — Use included Y-pipe
✓ Stainless Works Headers — Remove Y-pipe for true dual
*System can be used with stock exhaust or Stainless Works headers
⇩ Download Installation Instructions (PDF)
What's In The Box
- Y-Pipe
- Lead Pipes x2
- Tail Pipes x2
- Exhaust Tips x2
- Band Clamps x8
- Hanger Assemblies x4
- Saddle Clamps x2
- Bolts x2
- Washers x4
- Lock Washers x2
- Nuts x2
- Installation Instructions
Frequently Asked Questions
Will this catback fit my 2020–23 Silverado or Sierra HD 2500/3500?
Yes. This catback exhaust is designed specifically for the 2020–2023 Chevy Silverado and GMC Sierra HD 2500/3500 with the 6.6L gas motor. It fits 2WD and 4WD models in all cab and bed configurations — some may require minor trimming.
What is the difference between Legend and Redline series?
Legend systems are designed with the daily-driver in mind — improved tone with restrained loudness. Redline systems are designed to maximize the volume and tone of the engine, while still eliminating any drone in the cabin. Resulting in a feeling that will make you want to high-five your friends in the face.
Can I use this with my factory manifolds or Stainless Works headers?
Yes. Use the included Y-pipe for a bolt-on install to the factory manifolds. For a true dual system, connect without the Y-pipe directly to Stainless Works Long Tube Headers.
What warranty is included?
Stainless Works provides a lifetime warranty on material and craftsmanship — covering the full life of the product, not just a limited term.
Questions? Call us at | Mon–Fri 7:30am–4:30pm EST
Built To Order in 4 Weeks — Free Shipping on Orders $50+
This Listing
- Brand: Stainless Works
- Part number: CT220CBR-B
- Product type: Cat-back exhaust
- Fitment: 2020-21 Silverado HD 6.6L
- Configuration: Redline (Most Aggressive), Matte Black
- Shipping weight: 84 lb
California Prop 65 warning applies to this product.
Fitment note: Stainless Works systems are application-specific (year, cab/bed, transmission and factory exhaust). Send us your VIN before ordering and we will confirm fitment: 954-507-6261 or sales@americanmuscleperformance.net.
