2015-17/ 24+ Mustang GT MRT Extreme Cat Back

The Ford Mustang GT is one of the most famous pony cars ever produced. For GT owners looking to improve the power of their pony and squeeze even more from their machine, we offer the MRT Extreme line of exhaust. We engineered this system to take your rie to the next level in both sound and performance. The MRT Extreme line offers our most aggressive sound: an "always on" rumble at idle releases into a frightening roar that screams "take no prisoners." With our Mustang GT Extreme Cat Back system, your sixth-gen or seventh-gen machine will have the loud, aggressive, and deep muscle car sound of the original. You'll feel like you've been taken back to the 1960s whenever you cruise down the highway or accelerate from a traffic light - all with modern performance underneath your foot.

We achieve added performance by maximizing exhaust flow and reducing back pressure: this cat back system includes our h pipe design (over x pipe), which offers a freer and more direct exhaust path, meaning MORE power and efficiency. The H Pipe also deepens the exhaust note, giving a deeper, smoother and more refined tone than the x pipe common to many after market exhaust systems. Our Extreme Mustang Cat Back Exhaust will fit all 2015-17 and 2024+ Mustang GT models with the 5.0L V8 Coyote powerplant. It's designed to complement the DNA of your vehicle, unleashing its aggressive side especially when you go flat-footed. The better exhaust flow of a performance H pipe cat back exhaust also boosts horsepower, torque and fuel efficiency so you Get Noticed in more ways than one. Our off road systems are not for the everyday driver, however: as non-catted exhaust system, our Extreme Cat Back without catalysts offers the highest possible power, torque, and fuel economy gains, helping put you out front in a rally meet or a battle among friends. Note that because the system removes the catalytic converter, this exhaust is not legal for use on public roads.Made specifically for racing and other private uses, it's one of the easiest ways to get you roaring in front of the pack.

Gallop Forward with a Mustang GT Exhaust

MRT exhausts are handcrafted in corrosion-resistant T304 stainless steel for lasting performance. Base systems include T304 polished stainless steel four-inch tips and three-inch mandrel bent tubing. A Black Ops black matte tip finish is available for an additional fee. This system is engineered for the best sound to match your GT and provides increased performance from increased exhaust flow. MRT has engineered a DMS (Drone Management System) for this cat back to give it the most pleasant ride experience.

The MRT Extreme Cat Back is the loudest MRT cat back - even louder than the Street Race Exhaust. Our Extreme exhausts have enough exhaust presence with elevated sound to Get Noticed and Feel the Performance. For customers with factory-installed active and dual-mode exhaust valves, MRT offers and recommends a simple solution that allows you to upgrade your exhaust system without having to develop a tune. For more information on these plates, refer to MRT Part #92G155 or simply add it to your shopping cart before checkout.

We're known for high-performance Mustang GT exhaust systems that are DIY-friendly. It takes about 90 minutes to install the Mustang GT Extreme Cat Back using common hand tools. With a limited lifetime warranty against material and workmanship defects, your American-made exhaust is ready to hit the road or the track.

Application: 2015-17 and 2024+ Mustang GT coupe and convertible, 5.0L V8 engine.

Doesn't Fit: 3.7L V6 engine, Shelby GT350, Shelby GT500, Mustang GTD

Hear the Difference

• How does it sound? The MRT Mustang GT Extreme Cat Back #91U914 is the loudest and baddest sounding exhaust that is always "on."
• Is there any drone or resonance? Some managed drone.
• What if I step on it? Wide-open throttle brings out an extreme exhaust roar that screams "take no prisoners."

• DIY installation for the backyard mechanic.
• Made of T304 stainless steel for the best corrosion resistance.
• Engineered, designed and manufactured in the U.S.

• What kind of steel is it made from? Corrosion-resistant T304 stainless steel.
• Where is it made? Developed and handcrafted in-house at MRT facility in Plymouth, Michigan, USA.
• How long is the Warranty? Limited Lifetime Warranty (See Warranty Page for Details)

• What is the muffler design? Straight through design to provide maximum exhaust gas flow.
• What is the tube diameter? A large 3" tube is used for reduced exhaust flow restrictions.
• What are the performance gains? Reducing restriction and maximizing flow provides for noticeable gains.

• What kind of tip is it? Dual 4" double wall, polished T304 stainless steel tips with beveled edges.
• What are my tip finish options? Stylish Polished Stainless Steel or Black Ops Matte Ceramic.
• How do I get noticed? Great sound and great looks turn heads and get positive comments!

• Can I install this myself? Yes, MRT engineers this Premium Exhaust System for a simple do-it-yourself (DIY) installation.
• How long does it take to install? Installation time is about 90 minutes and requires only common hand tools.
• What is included? All necessary hardware included.