Stainless Works 2019+ Chevrolet Silverado 5.3L Catted Headers 1-7/8in Primaries 3in Leads Y-Pipe (part # CT19HCATY), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2019–26 Silverado 5.3L
Long Tube Headers
3" Collector
Made in USA
Overview
Improve the sound and performance of your 2019–26 Chevy Silverado and GMC Sierra 5.3L with premium long tube headers from Stainless Works. American-Made and engineered for the EcoTec3 V8, these headers feature 1-7/8" primary tubes that are CNC mandrel bent to increase airflow, and engineered to create maximum power.
These headers come with 3" slip-fit collectors, as well as high-flow catalytic converters that flow into a crossover. Choose between a Performance Connect system that allows an easy connection to your Stainless Works exhaust or a Factory Connect system that uses a Y-pipe to connect to your stock exhaust or other aftermarket exhaust.
Built from corrosion-resistant 304 stainless steel and fully TIG welded for strength and durability at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term 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 2019–26 Silverado/Sierra 5.3L
- Available in Factory Connect or Performance Connect
Key Features
Long Tube Design
Improves exhaust scavenging for more power and torque.
1-7/8" Primary Tubes
CNC mandrel bent for smooth, unrestricted airflow.
3" Slip-Fit Collectors
Easy installation with factory or aftermarket exhaust.
High-Flow Catalytic Converters
EPA compliance with improved flow for maximum performance.
Factory or Performance Connect
Choose the connection option that matches your build.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2019–26 Chevy Silverado / GMC Sierra 5.3L |
| System Type |
Long Tube Header Kit |
| Primary Tube Size |
1-7/8" |
| Collector Size |
3" Slip-Fit |
| Catalytic Converters |
EPA Compliant High-Flow |
| Connection Options |
Factory Connect (Y-Pipe) — or — Performance Connect (X-Pipe) |
| Engine Compatibility |
5.3L Only — Does Not Fit 6.2L with 10-Speed Transmission |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
Fitment Information
⚠️ IMPORTANT FITMENT NOTE
Only fits 2019–26 5.3L engines. Does NOT fit the 6.2L with the 10-Speed Transmission.
This header system is available in two connection options to match your build:
Factory Connect
✓ Direct bolt-on to stock exhaust
Uses Y-pipe to connect to factory exhaust
Performance Connect
✓ Designed for Stainless Works exhaust systems
Uses X-pipe for true 3" performance system
⇩ Download Installation Instructions (PDF)
See It In Action
Sound Comparison and Features — 2019–26 Silverado 5.3L Long Tube Header System
What's In The Box
- Driver & Passenger Side Headers
- Catted Leads x2
- X-Pipe
- Band Clamps x4
- Bolt Kit — 16 Pieces
- RTV Tube
- O2 Extensions x2
- Installation Instructions
Frequently Asked Questions
Will these headers fit my 2019–26 Silverado or Sierra?
Yes. These long tube headers are designed specifically for the 2019–2026 Chevy Silverado and GMC Sierra with the 5.3L engine. They do not fit the 6.2L with the 10-speed transmission.
What connection options are available?
Factory Connect uses a Y-pipe to bolt directly to your stock exhaust. Performance Connect uses an X-pipe to connect to Stainless Works exhaust systems for a true 3" performance system. Both options include high-flow catalytic converters.
Do these headers include catalytic converters?
Yes. This system includes high-flow catalytic converters that are EPA compliant and designed for improved flow while maintaining emissions compliance.
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.
Customer Reviews
★★★★★
Quality and Install
Verified Buyer — Pete | January 31, 2026
This is by far the best kit I have ever bought. The attention to detail, with perfect welds. This and the catback were installed on the ground with the tires on. Once the junk was removed, it took 5 minutes to install each header. FREAKING AMAZING! Paired with SW's catback, there is ample improvement. (Can't wait for my ECM and TCM to get back for tuning. And awesome sound.)
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: CT19HCATY
- Product type: Headers
- Fitment: 2019+ Chevrolet Silverado 5.3L
- Configuration: High-Flow Cats, Stock Exhaust (Factory Connect)
- EPA status: Testing
- Shipping weight: 53.8 lb
California Prop 65 warning applies to this product.
Emissions note: headers, downpipes and catless/high-flow pipes may not be legal for street use in all states. Check your local emissions laws before installing.
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.
