1991 Ford Mustang Exhaust System Kits

Essential 1991 Ford Mustang Exhaust System Kits

Felpro – EXHAUST FLANGE BOLT & SPRING KIT (Part No.ES 72142)

EXHAUST FLANGE BOLT & SPRING KIT

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$18.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Validated for fit, form and function
  • Unsurpassed quality you can trust
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Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75125)

Exhaust Manifold Hardware Kit

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$45.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Unsurpassed quality you can trust
  • Validated for fit, form and function
  • Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
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Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75115)

Exhaust Manifold Hardware Kit

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$40.99
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Designed and manufactured to meet the needs of the exhaust system repair environment.
  • Verified, tested and certified proprietary Organic coating resists corrosion.
  • Tightly controlled coefficient of friction ensures reliable installation.
  • Application specific kit contents
  • Self-locking nuts (where applicable).
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Felpro – Exhaust Manifold Hardware Kit (Part No.ES 75122)

Exhaust Manifold Hardware Kit

from

$19.29
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Designed and manufactured to meet the needs of the exhaust system repair environment.
  • Verified, tested and certified proprietary Organic coating resists corrosion.
  • Tightly controlled coefficient of friction ensures reliable installation.
  • Application specific kit contents
  • Self-locking nuts (where applicable).
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Dorman – Help – Cap Screw-Hex Head-Grade 8- 1/2-13 x 2-1/2 In. (Part No.03411)

Cap Screw-Hex Head-Grade 8- 1/2-13 x 2-1/2 In.

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$16.29
Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.

Product Features:
  • Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles.
  • Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
  • Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Manifold Mount Hardware – M8-1.25mm Stainless Steel (Part No.03411HP)

Exhaust Manifold Mount Hardware - M8-1.25mm Stainless Steel

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$26.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.

Product Features:
  • Upgraded hardware – this set of ten M8-1.25 exhaust manifold mounting studs and nuts are 100 percent stainless steel for superior heat and corrosion resistance
  • Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
  • Matches fit – this hardware matches the fit and function of the factory fasteners, while offering superior durability
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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MagnaFlow – Competition Series Cat-Back Performance Exhaust System (Part No.15677)

Competition Series Cat-Back Performance Exhaust System

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$863.99
The MagnaFlow 1994-1998 Ford Mustang Competition Series Cat-Back Performance Exhaust System 15677 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we’re so well known for. This exhaust kit is designed to enhance your 4.6L, 5.0L 1994-1998 Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3.5in. Polished Clamp-On Single Wall Angle Cut Cut Edge tips featuring a sporty finish. The exhaust system’s cat-back layout replaces your ride’s exhaust system from near the catalytic converter on back. Exhaust system 15677 is engineered to make your vehicle’s engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 15677’s direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow’s limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Features:
  • Crafted from 409 stainless steel with all mandrel-bent tubing
  • Increased horsepower and torque
  • Aggressive exterior sound
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Borla Performance Exhaust – 1819 Ford Mustang GT 5.0L 2.5in SType Exhaust w/o Valves (Part No.11953BC)

1819 Ford Mustang GT 5.0L 2.5in SType Exhaust w/o Valves

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$1163.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15717)

Street Series Cat-Back Performance Exhaust System

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$869.99
The MagnaFlow 1999-2004 Ford Mustang Street Series Cat-Back Performance Exhaust System brings out the personality of your 3.8L, 3.9L 1999-2004 Ford Mustang with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3in. Polished Clamp-On Single Wall Angle Cut Cut Edge tips, this Ford Mustang exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Ford Mustang’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15717 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15717 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15589)

Street Series Cat-Back Performance Exhaust System

from

$1170.00
The MagnaFlow 2011-2012 Ford Mustang Street Series Cat-Back Performance Exhaust System brings out the personality of your 5.0L, 5.4L 2011-2012 Ford Mustang with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Ford Mustang exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Ford Mustang’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15589 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15589 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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Borla Performance Exhaust – Axle-Back Exhaust System – S-Type (Part No.11887BC)

Axle-Back Exhaust System - S-Type

from

$1006.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
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Borla Performance Exhaust – T-304 Ss, 2.5"Pipe Dia, Dual Exhaust With Dual Exit, 4"Dia X 12" L Round (Part No.140458)

T-304 Ss, 2.5"Pipe Dia, Dual Exhaust With Dual Exit, 4"Dia X 12" L Round

from

$1200.99
With over 400 internal muffler designs based on the technologies shown here, BORLA(R) offers exhaust systems to suit every vehicle, driving style and sound preference. Muffler body shapes, internal core characteristics, flow dynamics and more are tuned and harmonized to maximize performance and pure driving excitement. BORLA(R) ATAK(R) (Acoustically-Tuned Applied Kinetics) technology is designed for high-performance purists who prefer exhaust sound over their stereos. ATAK(R)-equipped exhaust systems deliver the highest available Decibel levels in the BORLA(R) street-legal lineup. And unlike inferior brands that lose significant sound quality at higher volumes, ATAK(R) is tuned like a graphic equalizer to shape and focus sound waves for optimum high-volume output. ATAK(R) technology is based on specifically-tuned attributes of the internal muffler cores, which are calibrated on a vehicle-by vehicle basis to deliver the most desirable sound.

Product Features:
  • ATAK(R) (Acoustically-Tuned Applied Kinetics) Technology Is Designed For High-Performance
  • ATAK(R) Equipped Exhaust Systems Deliver The Highest Available Decibel Levels
  • ATAK(R) Is Tuned Like A Graphic Equalizer To Shape And Focus Sound Waves For Optimum High-Volume Output
  • ATAK(R) Technology Is Based On Specifically-Tuned Attributes Of The Internal Muffler Cores
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aFe POWER – MACH Force-Xp Axel Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-43052-P)

MACH Force-Xp Axel Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

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$929.99
aFe introduces the MACH Force XP dual axle-back exhaust system for the 11-14 Mustang GT V8-5.0L. In recent testing this system produced 18 horsepower and 15 lbs. x ft. of torque. This exhaust is constructed from 3 in. mandrel-bent, stainless steel and is MIG-welded. The system uses high-flow, stainless steel mufflers which improves performance across the power band while maintaining a great tone. To finish off this exhaust are dual 4 in. double wall, 304 stainless steel aFe laser-etched tips. This exhaust uses all factory hanger locations for a hassle-free installation. No modifications necessary. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.

Product Features:
  • 3 in. Dia. 304 Stainless Steel
  • 100% Hand TIG Welded
  • 4 in. Double Wall Polished 304 Stainless Steel Tip
  • AFE Laser Etched Tips
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Flowmaster Inc. – Axle-back System – Dual Rear Exit – American Thunder – Moderate Sound (Part No.17410)

Axle-back System - Dual Rear Exit - American Thunder - Moderate Sound

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$620.99
This moderate sounding system is designed to replace the original rear mounted mufflers located behind the rear axle. With easy fit in mind, the system is mandrel bent for maximum performance and includes specially selected mufflers to support the performance image of the car. As a Force II system, it delivers a moderate exterior tone with moderate interior sound level that is suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, the system includes all necessary parts and hardware for easy installation.
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MagnaFlow – Competition Series Axle-Back Performance Exhaust System (Part No.19179)

Competition Series Axle-Back Performance Exhaust System

from

$1001.99
The MagnaFlow 2015-2023 Ford Mustang Competition Series Axle-Back Performance Exhaust System 19179 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we’re so well known for. This exhaust kit is designed to enhance your 2.3L, 3.7L 2015-2023 Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system’s axle-back layout replaces your ride’s exhaust system from near the rear axle on back. Exhaust system 19179 is engineered to make your vehicle’s engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19179’s direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow’s limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Features:
  • Crafted from 409 stainless steel with all mandrel-bent tubing
  • Increased horsepower and torque
  • Aggressive exterior sound
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.15632)

Street Series Cat-Back Performance Exhaust System

from

$1020.00
The MagnaFlow 1987-1993 Ford Mustang Street Series Cat-Back Performance Exhaust System brings out the personality of your 5.0L 1987-1993 Ford Mustang with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 3in. Polished Clamp-On Single Wall Turndown Cut Edge tips, this Ford Mustang exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Ford Mustang’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 15632 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15632 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
See More

Borla Performance Exhaust – Axle-Back Exhaust System – ATAK (Part No.11838)

Axle-Back Exhaust System - ATAK

from

$1184.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
See More

aFe POWER – MACH Force-Xp Cat Back Exhaust System: Polished Tip, 304 Stainless Steel, Gain up to 16 HP (Part No.49-33084-P)

MACH Force-Xp Cat Back Exhaust System: Polished Tip, 304 Stainless Steel, Gain up to 16 HP

from

$1649.99
aFe is proud to introduce our Mach Force-Xp cat-back exhaust systems. In recent testing, this system produced +16 horsepower and +17 lbs. x ft. of torque on our in house dyno. This cat-back exhaust system utilizes 3in into 2-1/2in tubing with a clamp-on reduction tube to fit the stock connections. Remove them and combine with the aFe Power Twisted Steel down-pipes (P/N: 48-33017-HC or 48-33017-HN) for added flow and performance. This system incorporates dual, high-flow mufflers to improve performance across the power band while maintaining an aggressive sound. To finish off the exhaust, dual 4 diameter polished 304 stainless steel tips are included. This system includes hardware for a hassle-free installation.

Product Features:
  • Produces An Astonishing 16 HP And 17 ft./lbs. Of Torque
  • 3 in. To 2.5 in. Mandrel Bent Tubing
  • Includes Dual; High-Flow Mufflers
  • 2-To-1 Mitered Split To Eliminate Dead Zone For Improved Flow
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Borla Performance Exhaust – T-304 Ss, 2.5"Pipe Dia, Dual Exhaust With Dual Exit, 4"Dia X 12" L Round (Part No.140067)

T-304 Ss, 2.5"Pipe Dia, Dual Exhaust With Dual Exit, 4"Dia X 12" L Round

from

$1072.99
BORLA(R) experience and advance engineering have produced a S- Type exhaust with outstanding flow numbers that generate great power enhancements. These attributes, coupled with an aggressive sound of power and awesome big tip, proclaim this Stang is all business.

Product Features:
  • BORLA(R) Cat-Back(TM) Exhausts Feature, Straight Through And Multi-Core Technology To Unleash Hidden Horsepower
  • Each System Is Built From Aircraft Grade High Quality T-304 Stainless Steel
  • Ultra Smooth Mandrel Bends Ensure Maximum Flow And Power
  • Precision Computer Controlled CNC Manufacturing Ensures An Accurate Fit
  • Free-Flow Exhaust Utilizes Patented Award And Race Winning Technology To Deliver Quality, Sound, Performance Gains And Enhanced Fuel Economy
  • Easy Bolt-On Installation
  • Aggressive S-Type Sound Under Acceleration, No Drone At Highway Speeds
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MBRP Exhaust – Black Series, 3 In Axle Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound (Part No.S7203BLK)

Black Series, 3 In Axle Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound

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$329.99
Our Black Series performance exhaust systems offer a true murdered out style without compromising on quality and performance. With fully sealed seams to resist rust you can count on this system to really hold up. The black coat finish is specifically formulated to withstand the extreme heat and abrasive conditions an exhaust system is exposed to. MBRPs performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your ride will use less gas, last longer and perform better. Every system we sell has been built to the most exacting standards in the industry. MBRP systems are as much fun to install as to drive with on your muscle car. Bolt on, no weld design makes installation a no hassle one and a half to two hour project.

Product Features:
  • Black Series Axle Back System
  • Designed To Maximize Exhaust Flow And Minimize Exhaust Temperatures Your Ride Will Use Less Gas, Last Longer And Perform Better
  • Dyno Proven
  • Specifically Tuned To Get The Optimal Sound From Your Ride
  • Black Coat Finish Is Specifically Formulated To Withstand The Extreme Heat And Abrasive Conditions An Exhaust System Is Exposed To
  • Easy Installation
  • Limited 3 Year Warranty On Product And Limited 1 Year Warranty On Coating
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MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15816)

Street Series Crossmember-Back Performance Exhaust System

from

$926.99
The MagnaFlow 1967-1970 Ford Mustang Street Series Crossmember-Back Performance Exhaust System 15816 brings enhanced engine sound and dyno-proven performance to your 3.3L, 4.1L, 4.7L, 5.0L, 5.8L, 6.4L, 7.0L 1967-1970 Ford Mustang with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Ford Mustang exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Ford Mustang’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 2.75in. Polished Welded-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15816 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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MagnaFlow – Race Series Axle-Back Performance Exhaust System (Part No.15152)

Race Series Axle-Back Performance Exhaust System

from

$613.99
The MagnaFlow 2013-2014 Ford Mustang Race Series Axle-Back Performance Exhaust System 15152 doesn’t leave any performance on the table with a race-ready, light weight, dyno-proven design ready to help your 5.0L 2013-2014 Ford Mustang take on any pretenders, whether on the track or the street. Exhaust kit 15152 is engineered to produce our powerful, resonant signature exhaust note at Very Aggressive exterior and Aggressive interior sound levels with an axle-back layout that replaces your vehicle’s exhaust components from near the rear axle on back. Please check to ensure compliance with local noise regulations. This Ford Mustang exhaust kit features fast-flowing mandrel bent 3in. diameter main piping that ends in a Dual Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips. Extensive 3D scanning during development and the use of advanced CNC precision robotic manufacturing techniques ensures that 15152’s direct-fit design fits so perfectly that you can easily install the system yourself. The durable, corrosion resistant stainless steel construction of exhaust system 15152 is backed by MagnaFlow’s limited lifetime warranty.

Product Features:
  • High performance lightweight design
  • Straight pipe-like sound
  • Durable corrosion-resistant stainless steel construction
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aFe POWER – MACH Force-Xp Cat Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-43047)

MACH Force-Xp Cat Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP

from

$1277.99
Introducing the new aFe Power MACH Force XP dual exhaust system for the 05-09 Ford Mustang V6-4.0L. In recent testing, this system produced 12 horsepower and 16 lbs. x ft. of torque. This exhaust is constructed from 2.5in. mandrel bent, stainless steel and is MIG-welded. Dual high flow, stainless steel, single in, single out mufflers are used to maximize performance across the power band while maintaining a great tone. To finish off this exhaust aFe uses dual, laser etched, 3.5in. polished 304 stainless steel tips. Note: The V8 rear bumper cover is recommended (Ford OE Part Number 5R3Z17K835BAA). The use of the OE V6 bumper cover requires cutting and should be performed by a skilled technician.

Product Features:
  • 2.5 in. Mandrel Bent 409 Stainless Steel Tubing
  • 100% Hand MIG Welded
  • Dual 3.5 in. 304 Stainless Steel Rolled Edge Round Tips
  • Hassle Free Installation
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MagnaFlow – Competition Series Axle-Back Performance Exhaust System (Part No.19418)

Competition Series Axle-Back Performance Exhaust System

from

$1668.99
The MagnaFlow 2018-2023 Ford Mustang Competition Series Axle-Back Performance Exhaust System 19418 brings an aggressive, attention-grabbing edge to the deep resonant exhaust note we’re so well known for. This exhaust kit is designed to enhance your 5.0L 2018-2023 Ford Mustang with dyno-proven performance made possible thanks to fast-flowing mandrel bent 3in. main piping and 2 Straight-Through mufflers ending in a Quad Split Rear exit with 4in. Polished Welded-On Double Wall Angle Cut Folded Edge tips featuring a sporty finish. The exhaust system’s axle-back layout replaces your ride’s exhaust system from near the rear axle on back. Exhaust system 19418 is engineered to make your vehicle’s engine produce Aggressive exterior and Moderate interior sound levels, befitting its competition-oriented design. 19418’s direct-fit design makes installation a breeze thanks to the use of advanced 3D scanning techniques. This performance exhaust system is made of 100% durable and corrosion-resistant stainless steel and produced using CNC precision robotic manufacturing, all backed by MagnaFlow’s limited lifetime warranty. Please check to ensure compliance with local noise regulations.

Product Features:
  • Crafted from 409 stainless steel with all mandrel-bent tubing
  • Increased horsepower and torque
  • Aggressive exterior sound
See More

MagnaFlow – Street Series Crossmember-Back Performance Exhaust System (Part No.15815)

Street Series Crossmember-Back Performance Exhaust System

from

$923.99
The MagnaFlow 1964-1966 Ford Mustang Street Series Crossmember-Back Performance Exhaust System 15815 brings enhanced engine sound and dyno-proven performance to your 2.8L, 3.3L, 4.3L, 4.7L 1964-1966 Ford Mustang with a healthy helping of our deep, resonant signature exhaust note at Moderate exterior and Mild interior sound levels. Thanks to its durable, corrosion resistant stainless steel design, this Ford Mustang exhaust system will handle whatever tarmac you decide to leave your mark on. This performance exhaust kit features a crossmember-back layout designed to replace your Ford Mustang’s exhaust system from the crossmember on back. With its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 2.75in. Polished Welded-On Single Wall Turndown Cut Edge tips, your muscle car will be sounding as awesome as it looks. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 15815 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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Flowmaster Inc. – Axle-back System 409S – Dual Rear Exit – American Thunder – Aggressive Sound (Part No.817588)

Axle-back System 409S - Dual Rear Exit - American Thunder - Aggressive Sound

from

$656.99
American Thunder exhaust systems deliver the aggressive sounds you want, as well as the performance gains you demand. This T409 stainless steel American Thunder Axle-back for the 2013 Mustang GT features specially modified Super 44 series mufflers with polished 4.00 in. stainless tips and is a direct bolt on for the restyled Mustang. A lifetime limited warranty provides assurance that this American made exhaust will deliver that famous Flowmaster sound for many years to come.

Product Features:
  • Stainless steel construction
  • Dyno tuned for maximum performance
  • Patented Delta Flow technology
  • Made in the USA
  • Premium Flowmaster quality
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MagnaFlow – Street Series Cat-Back Performance Exhaust System (Part No.19097)

Street Series Cat-Back Performance Exhaust System

from

$1449.99
The MagnaFlow 2015-2023 Ford Mustang Street Series Cat-Back Performance Exhaust System brings out the personality of your 2.3L 2015-2023 Ford Mustang with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 2.5in. main piping and 2 Straight-Through mufflers ending in a Dual Split Rear exit with 4.5in. Polished Welded-On Double Wall Angle Cut Folded Edge tips, this Ford Mustang exhaust kit has the performance chops to match its sporty sound and appearance. Upgrade your ride to the next level with an exhaust that has the pipes to put other Ford Mustang’s to shame. With this system your vehicle will be producing Moderate exterior and Mild interior sound levels while leaving other cars and trucks feeling envious at every stoplight. Exhaust kit 19097 features a cat-back layout that replaces your ride’s stock exhaust components from near the catalytic converter on back. Extensive 3D scanning during development has resulted in a direct-fit design that you can easily install yourself. 19097 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow’s 1-year limited finish warranty and limited lifetime construction warranty.

Product Features:
  • Dyno-proven performance
  • Durable corrosion-resistant stainless steel construction
  • CNC precision robotic manufacturing techniques
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Borla Performance Exhaust – 1112 Mustang Shelby GT500 2dr 5.4L 8cyl Agressive ATAK Exhaust (Part No.11799)

1112 Mustang Shelby GT500 2dr 5.4L 8cyl Agressive ATAK Exhaust

from

$1279.99
Borla Performance Industries is the pioneer and leader in the design and manufacture of stainless steel performance exhaust. We began two decades ago as a manufacturer of exhaust systems for such “concours classics” as Rolls-Royce and Ferrari cars and have evolved into the premier manufacturer of today’s performance vehicles for the street, off-road, and racing.Borla is proud to offer a true “Made in the USA” product sold around the world. We are a company of motorheads, and it shows in our products, customer service, and culture. On weekends, the same Borla employees who built your exhaust or helped you with technical support can be found competing at tracks, drag strips, off-road events and car shows. Constructed using T-304 stainless steel for long life and sharp appearance, and features all welded construction for maximum durability. Unlike any other exhaust brand, Borla’systems are designed from scratch on a vehicle-by-vehicle basis. Every car or truck has unique mechanical and acoustical properties, all taken into account as we spend countless hours optimizing muffler body shapes, internal core configurations, flow dynamics,soundand more.

Product Features:
  • Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive powerful sound
  • Each system is built from premium, high-quality austenitic T-304 stainless steel
  • Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled CNC manufacturing ensures an accurate fit
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1991 Ford Mustang Exhaust System Kits

Maybe you’re in the middle of a full rebuild of that 1991 Ford Mustang. Maybe you just need a couple of Exhaust System Kits. Either way, Advance Auto Parts has 6 different Exhaust System Kits in our inventory ranging from $18.29 to $1,020.00. That means you can find the exact parts or products you need to keep that 1991 Ford Mustang running smoothly.

Exhaust System Kits are only as good as their brand. We stock 3 different brands to make sure you have plenty of trusted parts to choose from for your 1991 Ford Mustang. FELPRO, Flowmaster Inc., and MAGNAFLOW are just some of the brands we stock. Search for brands you know or compare prices and reviews to help you decide!

We know you’ll find the perfect Exhaust System Kits for your 1991 Ford Mustang, but don’t take our word for it – read our customer ratings and reviews and buy with confidence.

So if you’re in the market for aftermarket Exhaust System Kits to keep your 1991 Ford Mustang rolling for years to come, look no further. Shop online and have your products shipped direct to your door, or pick up at the nearest Advance Auto Parts location today!

Exhaust System Kits Brands To Make Your 1991 Ford Mustang Last

Simple repair, complete replacement, or a full rebuild. No matter the job, your 1991 Ford Mustang demands trusted brand parts and products to keep it running. Many trusted brands of Exhaust System Kits make up Advance Auto Parts’ inventory, and all are ready to help make your Mustang the best it can be. Be sure to browse some of our top Exhaust System Kits brands and parts.

Popular Felpro Exhaust System Kits

We carry Felpro parts in our stock across Exhaust Manifold Hardware Kits categories, plus more. For a 1991 Ford Mustang, our most popular Felpro Exhaust System Kits include:
EXHAUST FLANGE BOLT & SPRING KIT
from $18.29
(3)
EXHAUST FLANGE BOLT & SPRING KIT
Exhaust Manifold Hardware Kits

FAQs for 1991 Ford Mustang Exhaust System Kits

What are the most purchased Exhaust System Kits for the 1991 Ford Mustang?

Out of 6 Exhaust System Kits for the 1991 Ford Mustang, the most popular in our inventory are:
Competition Series Cat-Back Performance Exhaust System
from $1007.99
This product is not rated
Competition Series Cat-Back Performance Exhaust System
Exhaust System Kits
Cat-back System 409S - Dual Dump Exit - American Thunder - Aggressive Sound
from $499.99
This product is not rated
Cat-back System 409S – Dual Dump Exit – American Thunder – Aggressive Sound
Exhaust System Kits
Street Series Cat-Back Performance Exhaust System
from $771.99
This product is not rated
Street Series Cat-Back Performance Exhaust System
Exhaust System Kits