Sale

Exhaust Exhaust Pipes, Systems and Components

Stainless Works

Stainless Works 15-18 F-150 3.5L Downpipe 3in High-Flow Cats Y-Pipe Factory Connection

$1,695.00 $1,610.25 Save $84.75

SKU: S00K FT16ECODPCAT

In Stock
In Stock
Ships by Aug 9
Free Shipping over $100
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: FT16ECODPCAT

2015-20 F150 3.5L Ecoboost Downpipe. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. 3" downpipe with catted lead pipes. Includes Y-pipe to fit to flanged factory connection point. These are TIG welded for strength and durability. These kits come with a lifetime warranty and proudly made in the USA.

2015-20 F150 3.5L Ecoboost Downpipe. Stainless steel 3" downpipe with catted lead pipes. Includes Y-pipe to fit to flanged factory connection point.

MIA's Description

3-inch diameter downpipes with high-flow catalytic converters, designed for 2015-2020 Ford F-150 3.5L EcoBoost (also compatible with 2.7L EcoBoost). Replaces factory downpipe and Y-pipe to increase horsepower, torque, exhaust flow, and sound. Constructed from 304 stainless steel, TIG welded, natural finish, corrosion resistant. Features a factory connect design, compatible with stock or aftermarket exhaust systems. Bolts onto factory mounting points; no cutting or welding required.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandStainless Works
Part NumberS00K FT16ECODPCAT

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy