Stainless Works Long Tube Header Kit Performance Connect (M12HDRCATX) - 2011-14 Mustang GT 5.0L
Unleash the full power of your 5.0L Coyote engine with the Stainless Works Long Tube Header Kit, designed for maximum performance and perfect fitment. This Performance Connect system delivers outstanding horsepower and torque gains while giving your Mustang GT an unmistakable, aggressive tone. Built for enthusiasts who demand power, precision, and lasting quality.
Constructed from high-quality 304 stainless steel, these headers feature smooth mandrel bends, precision TIG welding, and a crossover X-pipe that improves exhaust scavenging and balance. The included high-flow catalytic converters enhance performance without sacrificing drivability. With multiple connection options and a lifetime construction quality, this system sets the standard for modern Mustang exhaust upgrades.
Features
- Adds horsepower and torque with a bolt-on performance design
- High-flow catalytic converters increase exhaust efficiency
- Made from premium 304 stainless steel for superior strength and corrosion resistance
- X-pipe crossover enhances airflow and performance tone
- Fully TIG welded for long-lasting durability and precision
- Multiple connection options to match your build requirements
Fitment
- 2011 Ford Mustang GT 5.0L
- 2012 Ford Mustang GT 5.0L
- 2013 Ford Mustang GT 5.0L
- 2014 Ford Mustang GT 5.0L
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

