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Open the Coyote exhaust path while retaining the factory cat-back connection
Stainless Power SFT18HCATY replaces the restrictive factory manifolds on a verified 5.0L F-150 with TIG-welded 304 stainless long-tube headers, high-flow catalytic converters, and a Y-pipe engineered to meet the original exhaust connection.
Key Features
- Exact Stainless Power SFT18HCATY Factory Connect configuration
- 1-7/8-inch CNC mandrel-bent primary tubes
- 3-inch collectors
- 304 stainless steel construction
- Fully TIG-welded assemblies
- Two high-flow catalytic converters
- Y-pipe for the factory cat-back connection
- Two-year Stainless Power warranty
Fitment
| Years | Make | Model | Engine, Drivetrain, Body and Exclusions |
|---|---|---|---|
| 2015-2020 | Ford | F-150 | 5.0L engine; 2WD or 4WD; Regular Cab, SuperCab, or SuperCrew; factory cat-back connection; not CARB legal and not for sale or use on pollution-controlled vehicles in California |
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | SFT18HCATY |
| Series | Stainless Power |
| Header Style | One-piece long tube |
| Primary Tube Diameter | 1-7/8 inches |
| Collector Diameter | 3 inches |
| Material | 304 stainless steel |
| Finish | Natural |
| Construction | CNC mandrel bent and TIG welded |
| Catalytic Converters | Two high-flow converters |
| Exhaust Connection | Factory cat-back via Y-pipe |
| UPC | 00887753444691 |
| Warranty | Two years under current Stainless Power terms |
What's Included
- One complete Stainless Power SFT18HCATY header kit
- One driver-side header and one passenger-side header
- One 3-inch elbow
- Two high-flow catalytic converters
- One Y-pipe
- Two 12-inch oxygen-sensor extensions for 2017 and older trucks
- Two 24-inch oxygen-sensor extensions for 2018 and newer trucks
- One welded hanger, six band clamps, header bolt kit, RTV sealant, and installation instructions
- Engine calibration, labor, unrelated gaskets, and replacement factory exhaust components are not included unless listed in the sealed kit
About Stainless Power
Stainless Power is the value-focused performance exhaust line developed by Stainless Works. Its header systems use application-specific tube routing, collector geometry, catalytic-converter layout, and connection points, so the exact part number and engine configuration control selection.
Related Parts
- Factory or aftermarket cat-back exhaust that retains the verified factory connection point
- Vehicle-correct oxygen sensors and service hardware
- Heat protection for nearby wiring, hoses, and components when required by the installation instructions
- Professional engine calibration only when required for the specific truck and local law
FAQ
What is the SFT18HCATY?It is a catted long-tube header and Y-pipe kit that connects to the factory exhaust on a verified 2015-2020 Ford F-150 with the 5.0L engine.
Which F-150 models are supported?The manufacturer lists 2015-2020 Ford F-150 trucks with the 5.0L engine in Regular Cab, SuperCab, and SuperCrew configurations with two-wheel or four-wheel drive.
Does the kit connect to the factory exhaust?Yes. This Factory Connect configuration is designed to join the original cat-back exhaust system.
Are catalytic converters included?Yes. Two high-flow catalytic converters and a Y-pipe are included in the verified kit.
What are the tube sizes?The headers use 1-7/8-inch primary tubes and 3-inch collectors.
Is this kit legal for sale or use in California?No. The product is not CARB legal and is not for sale or use on pollution-controlled vehicles in California or other jurisdictions that apply similar rules.
Is tuning required?The manufacturer does not publish a universal tuning statement for every truck configuration. Confirm current calibration, emissions, and installation requirements with the manufacturer and a qualified installer before use.
What warranty applies?Stainless Power lists a two-year warranty on materials and workmanship under its current terms and exclusions.
Installation Instructions
- Confirm the truck is a 2015-2020 Ford F-150 with the 5.0L engine, a supported cab and drivetrain, and the factory cat-back connection.
- Verify the sealed package and components identify Stainless Power SFT18HCATY before removing the factory exhaust.
- Review the current manufacturer instructions, emissions restrictions, oxygen-sensor routing, required tools, and vehicle service procedures.
- Allow the exhaust to cool, disconnect the battery as directed, raise and support the truck safely, and remove the factory manifolds and front exhaust components.
- Install the driver and passenger headers, high-flow catalytic converters, oxygen-sensor extensions, Y-pipe, clamps, hanger, and supplied hardware in the documented sequence.
- Connect the Y-pipe to the factory cat-back, align the system without preload, and torque all fasteners to the applicable specifications.
- Verify clearance from wiring, hoses, steering, drivetrain, frame, body, and heat-sensitive components, then reconnect and test all oxygen sensors.
- Start the engine, inspect for leaks or contact, complete any lawful calibration requirements, and recheck clamps and fasteners after the initial heat cycles.
California Proposition 65 Warning: Cancer and reproductive harm. See www.P65Warnings.ca.gov.
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