Who makes the best exhaust for s550 Mustang GTs? (ANSWERED)

best exhaust for s550 Mustang GT
Photo courtesy Rutger van der Maar via flickr. Used under a CC BY 2.0 license.

Question: I want a cat-back exhaust for my Ford Mustang GT. The stock muffler is quiet. I want to free up the exhaust and make it louder, with a good growl. What is the best exhaust for S550 Mustang GT?

Top 7 best cat-back exhaust systems for Mustang GTs (with sound clips in random order)

AWE Ford S550 Mustang exhaust offers an excellent sound and great installation package. AWE is one of the loudest exhausts for the s550.

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Borla makes a top tier full system muffler, x-pipes, and exhaust pipes for a modern day muscle car like the Mustang. Borla ATAK is one of the loudest exhausts for the s550.

BORLA 140630 3" ATAK Exhaust System
  • Fit Type: Vehicle Specific
  • Package Weight : 29.484 kilograms
  • Package Dimensions : 27.9 L x 132.7 H x 53.3 W (centimeters)
  • Made in United States

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Roush Performance Products 421127 Axle-Back Exhaust Kit, 1 Pack
  • Fits 2011-2014 Mustang GT 5.0L V8 & 2011-2012 GT500 5.4L V8
  • Upgraded aggressive sound tone and volume
  • Provides higher air flow and less back pressure for increased horsepower and torque

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MagnaFlow Cat-Back Performance Exhaust System 19100 - Street Series, Stainless Steel 3in Main Piping, Dual Split Rear Exit, Polished Finish 4.5in Exhaust Tip - Mustang Performance Exhaust Kit
  • MODERATE SOUND/STREET SERIES - Street Series performance exhausts are designed to enhance the power and exterior sound of your vehicle without sacrificing comfortable interior noise levels. Fast-flowing mandrel bent pipes with larger or more straight-through mufflers reduce exhaust restriction and enable that MagnaFlow performance tone without garnering racecar levels of attention. Specifically designed for the 2015-2017 Ford Mustang
  • CAT-BACK PERFORMANCE - Extensive testing and dyno-proven power make this exhaust truly developed for the driven. It is designed to replace the original exhaust components following the catalytic converter. These systems are 50-state legal and designed to optimize power based on the factory calibration
  • BOLT-ON INSTALLATION - MagnaFlow utilizes state-of-the-art 3D scanning technology during the research and development process to ensure that this exhaust system will fit AND outperform the original equipment
  • STAINLESS STEEL CONSTRUCTION - Highly corrosion resistant, stainless steel construction incorporating CNC precision robotic manufacturing for quality fitment and longevity. Built to be the exhaust that lasts the lifetime of your vehicle
  • LIMITED LIFETIME CONSTRUCTION WARRANTY - Performance that lasts. Enjoy worry-free ownership knowing that you're backed by MagnaFlow’s limited lifetime construction warranty

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Magnaflow’s street cat-back exhaust offers louder sound tones than stock but is quieter than other options.

SR Performance Cat-Back Exhaust Compatible with 99-04 Mustang GT, Mach 1
  • Aggressive Muscle Car Sound
  • Chambered Mufflers
  • 16 Gauge Aluminized Steel Construction
  • 2.5" Mandrel-Bent Tubing
  • 3.5" Polished 202 Stainless Steel Tips

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Flow master Outlaw Axle Back Exhaust System
  • 4. 00-inch Black Ceramic Coated Stainless Steel Tips
  • Aggressive Race Proven Outlaw Mufflers
  • Dyno-tuned for Maximum Performance

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Flowmaster offers mufflers for most applications, including Mustang GTs.

MBRP Street Cat Back exhaust with h-pipe is a good bang for buck, but louder than the Magnaflow.

CORSA EXHST 2018-2019 Ford Mustang Gt 3.0" Dual Rear Exit Valve Cat-Back Exhaust System with Twin 4.0" Tips (21001) Sport - Extreme Sound Levels
  • Product Type :Auto Accessory
  • Package Dimensions :38.1 Cm L X 53.34 Cm W X 147.32 Cm H
  • Country Of Origin :United States
  • Package Weight :77.0Lbs

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Corsa Xtreme Cat Back exhaust is the one of the loudest exhausts for the Mustang. It sounds exotic.

What exhausts sound best on Mustangs?

Mufflers are personal preference. A loud is fun for short drives but sucks for long drives.
Some cat back exhausts for the S550 Ford Mustang are fun and loud. Some are quiet and manageable on the street.

I also like that they are some of the loudest exhaust systems for the S550 Mustang.

You may not be able to hear the Whipple Supercharger over the exhaust note.

The muffler and pipes are easy enough to install.

A complete exhaust gives the most HP because all component sizes, tube bends, and mufflers are designed to work together to squeeze as much horsepower out of the engine as possible.

Any of these exhaust systems sound good. These mufflers make this modern day American muscle car one of the best and loudest rigs on the road today.

Find the best exhaust for S550 Mustang on Amazon.

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