Stainless Works 2015+ Ford GT350 Headers 1-7/8in Primaries High-Flow Cats 3in Collectors (part # GT350HCAT), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2015–20 Shelby GT350 / GT350R
Long Tube Headers
3" Collector
Made in USA
Overview
Improve the sound and performance of your 2015–20 Shelby GT350 or GT350R with premium long tube headers from Stainless Works. American-Made and designed specifically for the 5.2L Voodoo engine, these headers feature 1-7/8" primary tubes that are CNC mandrel bent to increase airflow and engineered to create maximum power.
This system comes with 3" slip-fit collectors and high-flow catalytic converters that flow into an easy connection to your factory exhaust system. Choose between Factory Connect or Performance Connect options to match your specific build.
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 2015–20 Shelby GT350 / GT350R 5.2L
- Multiple connection options to match your build
Key Features
1-7/8" Primary Tubes
Optimized sizing for strong mid-range and top-end power gains.
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.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2015–20 Shelby GT350 / GT350R 5.2L |
| System Type |
Long Tube Header Kit |
| Primary Tube Size |
1-7/8" |
| Collector Size |
3" Slip-Fit |
| Catalytic Converters |
EPA Compliant High-Flow |
| Connection |
Factory Connect or Performance Connect |
| 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 — 2015–20 Shelby GT350 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 2015–20 Shelby GT350 or GT350R?
Yes. These long tube headers are designed specifically for the 2015–2020 Shelby GT350 and GT350R with the 5.2L Voodoo engine. They are a direct bolt-on kit with no cutting or modification required.
What is the difference between Factory Connect and Performance Connect?
Factory Connect is designed to bolt directly to your factory exhaust system. Performance Connect is optimized for use with Stainless Works catback systems for maximum flow and performance.
Do these headers include catalytic converters?
Yes. This system includes high-flow catalytic converters that are EPA compliant and connect easily to your factory exhaust or a full Stainless Works catback system.
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
★★★★★
Stainless Works Headers
Verified Buyer — Ryan Miller | May 9, 2026
I purchased a set over a year and half ago for my 2018 GT350. These headers have held up great with zero issues! I just recently took them off the car to wrap them and I have to say I'm impressed with the quality and craftsmanship that went into them even after a year of getting beat on. I will definitely be buying another set for my 2025 F-150 here soon in the near future! Great job SW!! ❤️
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: GT350HCAT
- Product type: Headers
- Fitment: 2015+ Ford GT350
- Configuration: Stock Exhaust (Factory Connect), High-Flow Cats
- EPA status: Testing
- Shipping weight: 57.2 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.
