Stainless Works 2020 GT500 Headers 1-7/8in Primaries 3in High-Flow Cats (part # GT500188HCAT), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2020–22 Shelby GT500
Long Tube Headers
3" Collector
Made in USA
Overview
Improve the sound and performance of your 2020–22 Shelby GT500 with premium long tube headers from Stainless Works. Available with 2" or 1-7/8" primary tubes that are CNC mandrel bent to increase airflow and engineered to create maximum power.
Each system includes 3" slip-fit collectors, high-flow catalytic converters, and lead pipes that merge into an easy connection to your Stainless Works catback or factory exhaust system.
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 2020–22 Shelby GT500 5.2L
- Multiple connection options to match your build
Key Features
2" or 1-7/8" Primary Tubes
Choose the primary size that best matches your GT500 build.
3" Slip-Fit Collectors
Easy installation with factory or aftermarket exhaust.
High-Flow Catalytic Converters
EPA compliance with improved flow for maximum performance.
Multiple Connection Options
Fits Stainless Works catback or factory exhaust system.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2020–22 Shelby GT500 5.2L |
| System Type |
Long Tube Header Kit |
| Primary Tube Size |
2" or 1-7/8" |
| Collector Size |
3" Slip-Fit |
| Catalytic Converters |
EPA Compliant High-Flow (x2) |
| Connection |
Factory Connection Point - Fits Stainless Works and most Aftermarket Exhausts |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
⇩ Download Installation Instructions (PDF)
See It In Action
Sound Comparison and Features — 2020–22 Shelby GT500 Long Tube Header System
What's In The Box
- Driver & Passenger Side Headers
- Catalytic Converters x2
- Lead Pipes x2
- O2 Extensions x2
- Bolt Kit — 16 Pieces
- RTV Tube
- Clamps x4
- Installation Instructions
Frequently Asked Questions
Will these headers fit my 2020–22 Shelby GT500?
Yes. These long tube headers are designed specifically for the 2020–2022 Shelby GT500 with the 5.2L engine. They are a direct bolt-on kit with no cutting or modification required.
What primary tube sizes are available?
These headers are available with 2" or 1-7/8" primary tubes depending on your build. Both options feature 3" slip-fit collectors and high-flow catalytic converters.
Can I use these headers with my factory exhaust?
Yes. These headers are designed to connect to your factory exhaust system or pair seamlessly with a Stainless Works catback exhaust.
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: GT500188HCAT
- Product type: Headers
- Fitment: 2020 GT500
- Configuration: High-Flow Cats, 1-7/8 Inch
- EPA status: Testing
- Shipping weight: 57.4 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.
