Quiet, Normal, Sport, and Race modes are worth keeping, so we built the X F1 Pipe around them.You keep the factory mode-select exhaust but change the tone underneath it. The long X design gives the Mustang a smoother, higher-pitched sound while helping clean up the raspy, truck-like character the factory system can have.It's for owners who want a better exhaust note, not just more noise. The SPE X F1 Pipe is cut-to-fit, reuses the factory clamps up front, includes rear clamps, and installs with basic tools.
Check it out: https://www.spemotorsport.com/collections/mustang-exhausts/products/spe-2015-mustang-gt-dark-horse-exhaust-x-pipe
• Fits 2015+ Mustang GT and Dark Horse
• Full 304 stainless steel construction
• Long X design for increased pitch and cleaner tone
• Cut-to-fit with factory clamp reuse (rear clamps included)
• Bolt-in installation with basic tools — no welding required
• Designed, engineered, and tested in the USA

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