Stainless Works Long Tube Headers for 2015–2025 Mustang GT 5.0L – S550/S650

Maximize your Mustang’s performance with Stainless Works Long Tube Headers, designed specifically for the 2015–2025 Ford Mustang GT 5.0L. Whether you're building a high-horsepower street car or a dedicated track machine, these headers offer the perfect blend of performance, sound, and premium craftsmanship.

Made in the USA using high-grade 304 stainless steel, these headers are designed for superior strength, corrosion resistance, and long-term durability. The 1-7/8" primary tubes and 3” merge collectors deliver maximum flow and power gains throughout the RPM range — making them ideal for both naturally aspirated and forced induction setups.

Key Features:

• Fits 2015–2025 Ford Mustang GT 5.0L (S550 and S650 platforms)

• Built from CNC mandrel-bent 304 stainless steel

• 1-7/8” primaries for excellent flow and power gains

• 3” collectors with high-velocity merge spikes for better scavenging

• Available in off-road or high-flow catted configurations (sold separately)

• Fully TIG welded for strength, performance, and a clean finish

• Direct-fit design – bolts up to most Stainless Works or aftermarket cat-back systems

• Designed and handmade in the USA

Performance Benefits:

• Increased horsepower and torque across the powerband

• Improved exhaust sound – aggressive and deep

• Reduced backpressure and better throttle response

• Ideal for daily drivers, street/strip builds, and race applications

Installation Notes:

• ECU tuning is required after installation

• Professional installation recommended for best fitment and performance

• Not emissions legal in all areas – for off-road use only where applicable

Vehicle Fitment:

• 2015–2025 Mustang GT 5.0L (Coyote V8)

  • Fits both S550 (2015–2023) and S650 (2024–2025) chassis

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