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Product Information

The Borla Muffler/Resonator is a mid-pipe component for a 2015-2023 Ford Mustang: GT, 2.25-inch diameter per the listing, sold as its own part rather than a complete cat-back or axle-back system.

Why Upgrade

Per Borla, this part offers:

  • an internal H-Pipe design inside the resonator, which Borla says adds performance and improves sound
  • dual 2.25-inch inlets into a dual 2.5-inch outlet
  • steel Borla says outlasts the cheaper T-400-series (like 409) steel some competitors use
  • a Borla Million-Mile warranty on the part

Fitment Notes

Fits 2015-2023 Ford Mustang: GT. Does not fit Mustang: EcoBoost, Mach 1, GT500, Bullitt, GT350, V6. Borla's own listing is explicit that this is NOT designed to work with competitor or Original Equipment (O.E.) exhaust systems: it's built to replace the Merge X-Pipe in specific Borla Cat-Back systems only, so confirm it matches the exact Borla system you have before ordering.

More Mufflers parts that fit your Mustang

Install and Honest Talk

This bolts into the exhaust mid-section; it does not touch the catalytic converters, so it changes sound and, per Borla, exhaust flow, not emissions equipment. Borla doesn't say how loud this specific part makes the car; that depends heavily on what tailpipes, muffler, or system you pair it with. Borla does not list a dyno figure for this specific part.

Specs

  • Brand: Borla
  • Type: Muffler/Resonator
  • Pipe diameter: 2.25 inch
  • Inlet/Outlet: 2.25-inch inlets / 2.5-inch outlet
  • Fits: 2015-2023 Ford Mustang: GT
  • Excludes: Mustang: EcoBoost, Mach 1, GT500, Bullitt, GT350, V6
  • Part number: 60561
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