Skip to product information
1 of 3

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

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

SKU:SM12HCATX

In stock

Regular price $1,499.12 USD
Regular price $1,699.00 USD Sale price $1,499.12 USD
ADDITIONAL DISCOUNTS APPLIED AT CHECKOUT Sold out

The Stainless Works Stainless Power 2011-14 Mustang GT Headers feature 1-7/8 inch primary tubes paired with a 3-inch X-Pipe and 3-inch diameter lead pipes, designed to optimize exhaust flow and performance. Constructed from tig welded 304 stainless steel, these headers include 3/8-inch thick flanges and 3-inch diameter slip-fit collectors with merge spikes for enhanced scavenging and durability. The system incorporates high-flow catalytic converters that seamlessly mate to Stainless Works exhaust components, delivering improved horsepower and torque while maintaining emissions compliance. This premium bolt-on setup offers a full 3-inch diameter exhaust path, ensuring superior flow and a lifetime guarantee for long-lasting reliability.

These headers are engineered specifically for 2011 to 2014 Ford Mustang GT models, providing a direct replacement for the factory exhaust manifolds. The system is designed to connect with Stainless Works Performance Connect exhausts, creating a complete 3-inch diameter exhaust system optimized for street and performance driving. Installation is straightforward with bolt-on compatibility, requiring no modifications. Ideal for enthusiasts seeking enhanced exhaust flow and sound without sacrificing emissions compliance, this kit includes headers, high-flow cats, and a 3-inch X-Pipe for a comprehensive upgrade.

Overview

Stainless Works Mustang GT Headers

Fits 2011–2014 Ford Mustang GT

Part #: SM12HCATX

Overview

The Stainless Power headers are engineered specifically for the 2011 to 2014 Ford Mustang GT, featuring 1-7/8 inch primary tubes paired with a 3-inch diameter X-Pipe and lead pipes. Designed to integrate seamlessly with Stainless Works exhaust systems, this header and X-Pipe combination supports enhanced exhaust flow and improved engine breathing. Crafted for Mustang enthusiasts seeking durable, high-quality components, this system helps optimize performance while maintaining a reliable, bolt-on installation.

Key Features

This header and X-Pipe assembly offers a robust design and precise construction to support your Mustang’s exhaust needs:

  • Constructed from tig welded 304 stainless steel for corrosion resistance and long-lasting durability
  • 1-7/8 inch primary tubes designed to improve exhaust scavenging and flow efficiency
  • 3-inch diameter X-Pipe and lead pipes to maximize exhaust throughput and balance
  • 3/8 inch thick flanges ensure a strong, leak-resistant connection
  • Slip-fit 3-inch diameter collectors with merge spikes for smooth exhaust gas transition
  • Compatible with Stainless Works Performance Connect exhaust systems for a full 3-inch diameter setup
  • Lifetime guaranteed bolt-on system for straightforward installation and peace of mind

Construction & Design

These headers are meticulously crafted from premium 304 stainless steel, utilizing TIG welding techniques to ensure precise, strong joints that resist cracking and corrosion. The thick flanges provide a secure mounting surface, while the slip-fit collectors with merge spikes promote efficient exhaust gas flow and reduce turbulence. This design supports both durability and performance, making it a reliable upgrade for your Mustang GT’s exhaust system.

Installation & Fitment

Designed as a direct bolt-on replacement for 2011–2014 Mustang GT models, this header and X-Pipe system installs with minimal modification. It mates directly to Stainless Works Performance Connect exhausts, enabling a seamless 3-inch diameter exhaust path. The included components and precise fitment help simplify installation, making it accessible for experienced enthusiasts and professional installers alike.

View full details