Exhaust› Headers, Manifolds and Components

Stainless Works

1.875-Inch Header System w/ 3-Inch Collector

$1,519.05

SKU: SM255H3CAT

In Stock
In Stock
Ships by Aug 4
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Stainless Works SM255H3CAT is a performance-focused header system engineered for the Ford Mustang models from 2015 to 2024, specifically those equipped with the Coyote engine. This comprehensive kit comes complete with integrated converters, all necessary hardware, and intermediate pipes, simplifying the installation process. The "Performance Connect" design ensures a seamless transition to compatible Stainless Works 3-inch cat-back exhaust systems, with no gaskets required when connecting to the factory exhaust point.

MIA's Description

The Stainless Works SM255H3CAT is a full header system designed for the Ford Mustang 2015-2024 with a Coyote engine. It features 1.875-inch primary tubes and a 3-inch collector. This kit includes converters, hardware, and intermediate pipes.

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 NumberSM255H3CAT
CategoryExhaust

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