Stainless Works 15-18 F-150 3.5L Downpipe 3in High-Flow Cats Y-Pipe Factory Connection (part # FT16ECODPCAT), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2015–20 F-150 EcoBoost
Downpipe
Lifetime Warranty
Made in USA
Overview
Improve the power and performance of your 2015–20 Ford F-150 EcoBoost with a premium downpipe system from Stainless Works. This 3" downpipe will maximize exhaust flow and includes a Y-pipe to connect to the stock exhaust or most aftermarket exhausts.
Designed for the 3.5L and 2.7L EcoBoost engines, this downpipe features high-flow catalytic converters and a factory connect Y-pipe for a direct bolt-on installation. The 3" diameter tubing significantly reduces backpressure for faster turbo spool and improved throttle response.
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 F-150 3.5L & 2.7L EcoBoost
- Factory Connect Y-Pipe for easy installation
Key Features
3" Downpipe
Maximizes exhaust flow for improved turbo spool and performance.
Factory Connect Y-Pipe
Connects to stock exhaust or most aftermarket exhausts.
High-Flow Catalytic Converters
EPA compliance with improved flow for maximum performance.
304 Stainless Steel
Corrosion-resistant for a lifetime of reliable performance.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2015–20 Ford F-150 EcoBoost — 3.5L & 2.7L |
| System Type |
Downpipe with Y-Pipe and High-Flow Catalytic Converters |
| Diameter |
3" |
| Catalytic Converters |
EPA Compliant High-Flow |
| Connection |
Factory Connect Y-Pipe — Fits Stock or Aftermarket Exhaust |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
⇩ Download Installation Instructions (PDF)
What's In The Box
- Driver Side Downpipe
- Passenger Side Downpipe
- Y-Pipe
- Clamp with Welded Hanger
- AccuSeal Clamp
- Installation Instructions
Frequently Asked Questions
Will this downpipe fit my 2015–20 F-150 EcoBoost?
Yes. This downpipe is designed specifically for the 2015–2020 Ford F-150 with the 3.5L or 2.7L EcoBoost engine. It is a direct bolt-on system that includes a Y-pipe to connect to your stock exhaust or most aftermarket exhausts.
What are the benefits of upgrading to this downpipe?
The 3" downpipe significantly reduces backpressure for faster turbo spool, improved throttle response, and increased horsepower and torque. It also delivers a more aggressive exhaust tone and improves overall engine efficiency.
Does this downpipe include catalytic converters?
Yes. This downpipe includes high-flow catalytic converters that are EPA compliant and designed for improved flow while maintaining emissions compliance.
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: FT16ECODPCAT
- Product type: Downpipe
- Fitment: 15-18 F-150 3.5L
- Configuration: 3.5L, High-Flow Cats
- EPA status: Testing
- Shipping weight: 33.3 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.
