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Stainless Works Long Tube Headers w/High-Flow Cats, Factory Connect - 2021-2025 Ford F-150 5.0L
Improve the sound and performance of your 2021-2025 Ford F-150 5.0L with this long tube header kit from Stainless Works. Featuring 1-7/8 inch CNC mandrel bent primary tubes and integrated high-flow catalytic converters, this factory connect system is engineered to increase airflow while maintaining a stock-style connection point.
Key Features
- 1-7/8 inch CNC mandrel bent primary tubes for improved airflow
- Integrated high-flow catalytic converters
- Factory connection point for compatibility with the stock exhaust system
- Built from corrosion resistant 304 stainless steel and fully TIG welded
- Smooth mandrel bends optimize exhaust flow
Fitment
| Year | Make | Model |
|---|---|---|
| 2021-2025 | Ford | F-150 |
This header kit is designed specifically for F-150 trucks equipped with the 5.0L V8 engine. Verify your engine option before ordering.
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | SFT21HCATY |
| Material | 304 stainless steel |
| Construction | TIG welded, smooth mandrel bends |
| Primary tube size | 1-7/8 inch |
| Collector size | 3 inch |
| Connection type | Factory connection point |
| Catalytic converters | High-flow, included |
| Warranty | 2 year warranty on material and craftsmanship |
What's Included
- 1x driver side header
- 1x passenger side header
- 1x 3 inch elbow
- 2x high-flow catalytic converters
- 1x Y-pipe
- 2x O2 sensor extensions
- 1x welded hanger
- 6x band clamps
- 1x header bolt kit
- 1x RTV sealant
- 1x installation instructions
About Stainless Works
Stainless Works designs and manufactures performance exhaust systems and headers built from 304 stainless steel and TIG welded at their facility in Streetsboro, Ohio, backed by a warranty on material and craftsmanship.
Frequently Asked Questions
Does this header kit connect to the factory exhaust system?
Yes. This kit uses a factory connection point designed to work with the stock exhaust system.
Are catalytic converters included?
Yes. This kit includes two integrated high-flow catalytic converters.
What size are the primary tubes?
The primary tubes are 1-7/8 inch, CNC mandrel bent for improved airflow.
What material are these headers made from?
These headers are built from corrosion resistant 304 stainless steel and are fully TIG welded.
Is drilling required for installation?
No. This kit is designed as a direct bolt-on replacement using the factory connection point.
Are O2 sensor extensions included?
Yes. O2 sensor extensions are included to accommodate the factory sensor locations.
Is professional installation recommended?
Professional installation is recommended given the complexity of a long tube header installation.
What warranty is included?
This kit is covered by a 2 year warranty on material and craftsmanship.
Installation Instructions
- Raise the vehicle and allow the exhaust system to cool completely before beginning work.
- Disconnect the O2 sensors and remove the factory exhaust manifolds or headers.
- Install the new headers using the provided header bolt kit and RTV sealant at the mating surfaces.
- Connect the Y-pipe and 3 inch elbow to the factory connection point using the provided band clamps.
- Reconnect the O2 sensors using the provided extensions as needed for your model year.
- Secure the welded hanger and confirm clearance from all wires, hoses, and lines.
- Recheck all clamps and connections after driving the truck for a short break-in distance.
Prop 65 Warning
WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov
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