The 2015-2025 Ford Mustang GT 5.0L R-Series Exhaust System by NXT Step Performance is engineered for enthusiasts demanding a loud and aggressive roar. It features premium TIG-welded, dual-walled T304 stainless steel tips and mandrel-bent piping to ensure an exact fit. This system is designed for a secure cut-and-clamp installation on 2015-2017 and 2024-2025 GT models.
AUTO PRO USA, INC. has been serving the automotive aftermarket over the past decade and counting. We are dedicated to offering the best in reverse engineering and product development to the marketplace serving all of the major automotive and recreational vehicle markets. AUTO PRO USA, INC. believes in building long terms partners in the industry with competitive pricing and quality product. We have made it to where we are today because of our valued customers and understanding their needs.

| Make | Model | Submodel | Years | Engine | Fitment Notes |
| Ford | Mustang | Dark Horse Premium | 2024 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | Dark Horse Premium | 2025 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | Dark Horse | 2024 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | Dark Horse | 2025 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | Dark Horse | 2026 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT 50 Years Limited Edition | 2015 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2015 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2016 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2017 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2018 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2019 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2020 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2021 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2022 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2023 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2024 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2025 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT Premium | 2026 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT | 2015 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2016 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2017 | 5.0L / 302 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2018 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2019 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2020 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2021 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe;Off Road Use Only |
| Ford | Mustang | GT | 2022 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT | 2023 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT | 2024 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT | 2025 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Ford | Mustang | GT | 2026 | 5.0L / 307 / V8 | Stainless Steel; H-Pipe |
| Material | Stainless Steel |
| Part Type | Exhaust System Kit |
| Warranty | Limited Lifetime Warranty |