SKU: CT19HCATY | UPC: 00887753441478
Stainless Works 2019+ Chevrolet Silverado 5.3L Catted Headers 1 7/8 Inch Primaries 3 Inch Leads Y Pipe
The Stainless Works CT19HCATY Catted Headers are the best high performance exhaust upgrade for 2019+ Chevrolet Silverado 5.3L owners seeking maximum power gains, improved throttle response, and a deeper exhaust tone. These headers feature 1 7/8 inch primaries with 3 inch leads and include high flow catalytic converters for emissions compliance. Constructed from premium stainless steel with mandrel bent tubing and precision TIG welding, this complete Y pipe system reduces backpressure and optimizes exhaust flow for noticeable horsepower and torque increases while maintaining a factory like fitment.
Key Features
- 1 7/8 Inch Primaries: Optimized diameter for excellent mid range torque and top end power on 5.3L engines
- High Flow Catted Design: Includes catalytic converters for street legal emissions compliance
- 3 Inch Leads and Y Pipe: Smooth transition for maximum exhaust flow and reduced restriction
- Premium Stainless Steel: Durable construction with TIG welded joints for long term reliability
- Direct Bolt On Fit: Vehicle specific design installs using factory mounting points
- Stainless Works Quality: USA made with race proven performance for GM trucks
Specifications
| Specification | Detail |
|---|---|
| Part Number | CT19HCATY |
| Engine | 2019+ Chevrolet Silverado 5.3L |
| Primary Size | 1 7/8 Inch |
| Collector Size | 3 Inch |
| Material | Stainless Steel |
| Catalytic Converters | High Flow Included |
| Installation | Direct Bolt On |
| Country of Origin | United States |
| Warranty | Limited (Stainless Works) |
| Shipping Weight | Approx. 35 to 45 lbs |
What’s Included
- Pair of Stainless Steel Catted Headers
- 3 Inch Y Pipe
- All Necessary Gaskets and Hardware
- Installation Instructions
Product Notes
- Complete catted header system with 1 7/8 inch primaries and 3 inch collectors
- High flow catalytic converters maintain emissions compliance while improving flow
- Perfect for tuned 5.3L Silverado builds or those seeking maximum exhaust performance
Installation Notes
- Estimated time: 6 to 10 hours, advanced difficulty, professional installation highly recommended
- Requires exhaust manifold removal, O2 sensor relocation, and proper torque sequence
- Professional shop advised for tuning and emissions compliance verification
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 2019+ | Chevrolet | Silverado | 5.3L All Trims |
Why Choose Stainless Works Catted Headers?
- 1 7/8 inch primaries and high flow cats provide significant power gains with emissions compliance
- Premium stainless steel construction ensures long term durability and corrosion resistance
- Limited warranty trusted performance exhaust from Stainless Works for GM trucks
Frequently Asked Questions
- Q: Will these headers fit my 2020 Chevrolet Silverado 5.3L?
A: Yes, Stainless Works CT19HCATY fits all 2019+ Chevrolet Silverado 5.3L models. - Q: Are the catalytic converters included?
A: Yes, high flow catalytic converters are included in the kit. - Q: Is tuning required?
A: Recommended for maximum performance gains and to clear any check engine lights. - Q: What is the warranty?
A: Covered by Stainless Works limited warranty built for performance.
Shipping & Handling
- Method: UPS / FedEx Ground (Oversize)
- Availability: In stock ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 35 to 45 lbs






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