Stainless Works 2011-14 Mustang GT Headers 1-7/8in Primaries High-Flow Cats 3in X-Pipe

Stainless Works is known for making well-built exhaust components, and this header and X-pipe system for your 2011-2014 Mustang GT is a prime example. If you're looking to get more out of your 5.0L engine, this system replaces the factory manifolds, catalytic converters, and H-pipe with a performance-oriented setup designed to bolt right on.

The headers feature 1-7/8 inch primary tubes, which are great for helping your engine breathe better, especially if you've made other modifications. They're constructed from 304 stainless steel and are TIG welded for solid joints. The flanges are a beefy 3/8 inch thick, ensuring a good seal against the cylinder heads. This kit also includes high-flow catalytic converters and a 3-inch diameter X-pipe, which helps scavenge exhaust gases more efficiently than a stock H-pipe, leading to improved throttle response and a more aggressive exhaust note. The lead pipes are designed to connect directly to your factory exhaust system, making installation more straightforward.

This is a lifetime guaranteed bolt-on system, meaning it's built to last and designed to integrate with your existing exhaust setup from the catalytic converter connection point back. You'll be replacing the restrictive factory manifolds and cats with a system that allows your Mustang GT's engine to perform at its best.