Ford Mustang GT S550 – Valved Exhaust System

Clean Tone • Adjustable Sound • R&D-Tuned for the Perfect Mustang Note

A New Era of Mustang Sound

The S550 Mustang GT is an icon of American muscle—but when fitted with aftermarket headers, the sound can become harsh, raspy, and unruly. Valvetronic Designs has created the definitive solution: a valved exhaust system engineered to deliver a smooth, refined, yet aggressive tone worthy of the Coyote V8.

By integrating a center resonator, our system tames unwanted rasp while preserving the deep, muscular character Mustang owners crave. Whether paired with factory manifolds or adapted to aftermarket headers, this is the exhaust that finally gets the S550’s soundtrack just right.

Sound Experience

• Valves Closed: A composed, neighbor-friendly tone with minimal cabin intrusion—perfect for early mornings or long highway drives.

• Valves Open: A commanding, throaty roar with a refined top-end, free of excessive rasp and harshness.

Performance & Engineering Highlights

• Center Resonator Integration: Smooths exhaust tone and reduces harsh high-frequency rasp.

• Vacuum-Actuated Valves: Precision control over sound levels and longevity-focused operation.

• Weight Reduction: 11.3 lbs lighter than the OEM system for improved handling.

Construction & Craftsmanship

• Material: Premium T304 stainless steel for corrosion resistance and durability.

• Finish: Dual-wall black tips for a bold, aggressive appearance.

• Build Quality: Fully mandrel-bent piping and precision TIG welds for strength and maximum flow.

• Reversible Installation: 100% bolt-on design allows you to return to stock at any time.

Fitment

• 2015–2023 Ford Mustang GT (S550)

• Does not fit convertible models.

Specifications

• Design: Valved cat-back with center resonator

• Material: T304 stainless steel

• Tips: Dual-wall black tips

• Weight Savings: 11.3 lbs lighter than OEM