What is the main difference between this axle-back system and a full cat-back system?

An axle-back system replaces only the mufflers and tips at the rear of the exhaust. A cat-back system replaces everything from the catalytic converter back, including pipes, mufflers, and tips, offering a more comprehensive change to the exhaust system.

Will this exhaust system cause any drone inside the cabin?

The LoudMouth resonators are designed to minimize drone and rasp while still providing an aggressive sound. However, exhaust sound perception can vary based on driving conditions and individual vehicle setups.

What material are the exhaust tips made of?

The exhaust tips are made of polished stainless steel, which offers good resistance to corrosion and a bright, clean appearance.

SLP 2011-2014 Ford Mustang 5.0/5.4L LoudMouth Axle-Back Exhaust w/ 4in Tips

Specifications

Brand: SLP
Part #: M31023
UPC: 871782001048

SLP 2011-2014 Ford Mustang 5.0/5.4L LoudMouth Axle-Back Exhaust w/ 4in Tips

Name: SLP 2011-2014 Ford Mustang 5.0/5.4L LoudMouth Axle-Back Exhaust w/ 4in Tips
Brand: SLP
Price: 512.00 USD
Availability: InStock

$512.00

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2011-2014 Ford Mustang. SLP LoudMouth axle-back exhaust with 4in tips for an improved exhaust note.

Key Features

Fits 2011-2014 Ford Mustang GT, 2012-2013 Boss 302, and 2011-2012 GT500.
Features SLP's LoudMouth resonators for an aggressive, yet controlled exhaust note.
Includes 4-inch polished stainless steel exhaust tips.
Constructed from polished stainless steel for durability and corrosion resistance.
Designed as a direct bolt-on replacement for the factory axle-back mufflers.
No welding or cutting required for installation.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Fits this vehicle

Ford Mustang 2011-2014

Product Details

SLP is well-known for making performance exhaust systems that give your vehicle a more aggressive sound and improved flow. This LoudMouth axle-back exhaust system is specifically made for the 2011-2014 Ford Mustang GT, 2012-2013 Boss 302, and 2011-2012 GT500 models. It replaces the factory mufflers and tips with SLP's own design, aiming to give your Mustang a much louder and more distinct exhaust note.

This system uses SLP's LoudMouth resonators, which are designed to reduce some of the rasp and drone that can come with straight-pipe setups, while still letting your 5.0L or 5.4L V8 engine really sing. The polished stainless steel construction means it's built to last and resist corrosion, even in harsh weather. The 4-inch polished stainless steel tips give a substantial look to the rear of your Mustang, making it stand out.

Installation is designed to be a direct bolt-on replacement for your factory axle-back mufflers, meaning no welding or cutting is required. This makes it a straightforward way to change the sound and appearance of your Mustang's exhaust. You'll get a more visceral driving experience with the enhanced exhaust note that SLP is known for.