## MagnaFlow SYS Cat-Back 2018 Ford Mustang GT 5.0L Street Dual Exit Polished 4in Tips
If you're driving a Ford and you're serious about performance, you already know that factory cat-back exhaust system was engineered to a price point, not a performance target. MagnaFlow takes a completely different approach.
MagnaFlow has been engineering performance exhaust systems in Chula Vista, California since 1981, and their commitment to straight-through muffler technology has made them one of the most recognized names in performance exhaust. MagnaFlow's stainless steel construction and clean sound profile have earned them OEM relationships with manufacturers who trust their quality standards — a direct reflection of the engineering rigor applied to every system they produce. Whether you're looking for the deep rumble of a truck exhaust or a refined performance note for a sports car, MagnaFlow engineers the sound frequency range of every product to match the application.
The result is this cat-back exhaust system — engineered with the Ford specifically in mind, matching spring rates, mounting geometry, and component sizing to what this platform actually demands under real-world conditions.
## Engineering and Technology
MagnaFlow's straight-through muffler design uses stainless steel perforated core tubing wrapped in stainless steel wool that absorbs sound while allowing gases to flow freely. This design produces significantly less backpressure than conventional baffled mufflers, which is directly measurable as horsepower and torque gains on a dyno. All MagnaFlow systems are constructed from 409 or 304 stainless steel — the grade varies by product line — and all welding is performed using TIG process for maximum joint strength and corrosion resistance.
For the Ford, these engineering principles translate into direct performance improvements. Ford owners running this cat-back exhaust system consistently report improved throttle response, noticeable low-end torque gains, and the kind of exhaust note that actually improves the driving experience rather than just being louder.
## Who This Is For
This MagnaFlow cat-back exhaust system is designed for Ford owners who use their vehicles seriously. Whether your primary use is performance driving, daily driving, towing, this component was engineered to deliver in your specific application.
Factory exhaust systems are engineered for emissions compliance and cost reduction, not for extracting maximum performance from your engine. The factory exhaust exhaust leaves measurable horsepower and torque on the table, and does it with a muted, compressed exhaust note that doesn't do justice to what's actually happening under the hood. This MagnaFlow system corrects both issues.
Ideal for: Performance driving · Daily driving · Towing · Truck builds
## Why Upgrade Matters for Ford
Factory exhaust components are engineered to a budget and a set of average expectations. The engineering team responsible for the factory spec had to balance cost, mass-market appeal, regulatory compliance, and warranty exposure — none of which prioritize the kind of performance a serious truck or SUV owner actually needs.
The factory exhaust exhaust system uses a muffler design optimized for quiet operation and regulatory compliance, not for extracting performance. The result is measurable backpressure at wide-open throttle — backpressure that directly costs you horsepower and torque. A MagnaFlow cat-back exhaust system removes that restriction while engineering the exhaust tone for quality and character, not just volume.
## Installation and Compatibility
This MagnaFlow cat-back exhaust system is designed to fit the Ford using factory mounting positions and existing hangers. No cutting or welding is required on most configurations. Hardware is included, and all systems are designed to work with factory catalytic converters to maintain emissions compliance.
This product is designed and tested specifically for the Ford. If your vehicle has factory performance packages that may affect fitment, verify compatibility using your vehicle's build sheet or contact technical support before ordering.
## Complete Your Build with Bull Strap
If you're upgrading your Ford's exhaust system, your suspension travel and drivetrain protection deserve the same attention. Bull Strap limit straps are the final piece of the suspension puzzle — engineered and manufactured in the USA to control maximum droop travel and protect your axles, CV joints, and brake lines from overextension under articulation.
Bull Strap limit straps are made in the USA from high-tenacity webbing and proprietary hardware and are the choice of professional fabricators and serious off-road builders who understand that uncontrolled droop is how you destroy expensive components. Pair them with your MagnaFlow exhaust upgrade for a complete, properly engineered suspension system.
## Frequently Asked Questions
**Will this MagnaFlow cat-back exhaust system fit my Ford?**
Yes — this product is designed and validated for the Ford. Fitment data is verified against factory specifications. If you have a vehicle with unusual factory options or prior modifications, verify those don't affect the installation before ordering.
**How does MagnaFlow's cat-back exhaust system compare to the factory OEM equivalent?**
The factory cat-back exhaust system was designed to a budget and an average use case. MagnaFlow's engineering prioritizes performance, durability, and real-world function over cost minimization. In practical terms, you'll notice the difference in throttle response, power delivery under load, and the quality of the exhaust tone across the RPM range.
**Is this cat-back exhaust system covered by a warranty?**
MagnaFlow stands behind the quality of their products with manufacturer warranty coverage. Specific warranty terms vary by product line — refer to the product documentation or contact MagnaFlow directly for warranty details applicable to this part. MagnaFlow's warranty reflects their confidence in the quality of their manufacturing and materials.
**Can I install this cat-back exhaust system myself, or do I need a professional?**
Installation difficulty varies by cat-back exhaust system and vehicle. Exhaust installations are typically straightforward for experienced home mechanics with access to a lift. The main requirement is a safe way to access the vehicle's underside with adequate clearance to manipulate the new components into place.
## Build Quality and Value
MagnaFlow products are not the cheapest option for your Ford. They are not designed to be. Budget components in critical systems — exhaust components that your vehicle's capability and, in some cases, safety depend on — create a false economy. The cost of a component failure in a critical system far exceeds the delta between a quality product and a cut-rate alternative. MagnaFlow prices reflect genuine engineering investment, quality materials, precise manufacturing, and the validation process that ensures the product performs exactly as specified across its full service life.
For Ford owners who depend on their vehicles in demanding conditions, the calculation is straightforward: invest in components that perform when you need them to, last as long as the vehicle, and back that promise with manufacturer warranty coverage. This MagnaFlow cat-back exhaust system meets that standard.
For professional builders, fleet managers, and serious enthusiasts who track performance across their builds, MagnaFlow's consistent engineering standards mean predictable outcomes. When you specify MagnaFlow for a Ford build, you know what you're getting.
## Real-World Performance Context
MagnaFlow products are validated in the real world, not just on engineering benches. The exhaust hardware you choose for your Ford will be asked to perform across a wide range of conditions — temperature extremes, sustained load cycles, rough terrain, and the cumulative stress of thousands of miles in demanding environments. This cat-back exhaust system is engineered to deliver consistent, repeatable performance across all of those conditions.
Exhaust systems on trucks and performance vehicles face conditions that expose the quality differences between systems immediately. High temperatures from sustained high-RPM operation, exposure to road salt and moisture, vibration from engine and drivetrain harmonics, and the thermal cycling between hot and cold all stress exhaust system joints, hangers, and tubing. MagnaFlow's construction standards and materials are chosen specifically to handle these conditions for the long term.
**What makes the Ford a good platform for exhaust upgrades?**
The Ford has an excellent foundation — Ford engineers the platform with robust frame construction, capable stock drivetrain components, and factory exhaust specs that are genuinely competent for average use. The reason aftermarket upgrades make such a difference is precisely because the factory engineers did their job well — the platform can handle more than the factory spec delivers. A MagnaFlow cat-back exhaust system lets you access that latent capability.
**How long does this cat-back exhaust system last?**
MagnaFlow components are designed for service lives that match or exceed the factory equivalent. Proper installation, periodic inspection, and maintenance appropriate to your usage intensity are the primary variables in longevity. Owners running their Ford primarily on-road under moderate loads can expect many years of service without attention. Owners running aggressive off-road applications should inspect exhaust components more frequently and follow the manufacturer's maintenance recommendations.
**Will this affect my Ford factory warranty?**
Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your vehicle warranty simply because you installed aftermarket components, unless they can demonstrate the aftermarket part caused the specific failure. That said, review your warranty terms and understand the interaction between your aftermarket components and any open factory warranty claims before installation.
If you're driving a Ford and you're serious about performance, you already know that factory cat-back exhaust system was engineered to a price point, not a performance target. MagnaFlow takes a completely different approach.
MagnaFlow has been engineering performance exhaust systems in Chula Vista, California since 1981, and their commitment to straight-through muffler technology has made them one of the most recognized names in performance exhaust. MagnaFlow's stainless steel construction and clean sound profile have earned them OEM relationships with manufacturers who trust their quality standards — a direct reflection of the engineering rigor applied to every system they produce. Whether you're looking for the deep rumble of a truck exhaust or a refined performance note for a sports car, MagnaFlow engineers the sound frequency range of every product to match the application.
The result is this cat-back exhaust system — engineered with the Ford specifically in mind, matching spring rates, mounting geometry, and component sizing to what this platform actually demands under real-world conditions.
## Engineering and Technology
MagnaFlow's straight-through muffler design uses stainless steel perforated core tubing wrapped in stainless steel wool that absorbs sound while allowing gases to flow freely. This design produces significantly less backpressure than conventional baffled mufflers, which is directly measurable as horsepower and torque gains on a dyno. All MagnaFlow systems are constructed from 409 or 304 stainless steel — the grade varies by product line — and all welding is performed using TIG process for maximum joint strength and corrosion resistance.
For the Ford, these engineering principles translate into direct performance improvements. Ford owners running this cat-back exhaust system consistently report improved throttle response, noticeable low-end torque gains, and the kind of exhaust note that actually improves the driving experience rather than just being louder.
## Who This Is For
This MagnaFlow cat-back exhaust system is designed for Ford owners who use their vehicles seriously. Whether your primary use is performance driving, daily driving, towing, this component was engineered to deliver in your specific application.
Factory exhaust systems are engineered for emissions compliance and cost reduction, not for extracting maximum performance from your engine. The factory exhaust exhaust leaves measurable horsepower and torque on the table, and does it with a muted, compressed exhaust note that doesn't do justice to what's actually happening under the hood. This MagnaFlow system corrects both issues.
Ideal for: Performance driving · Daily driving · Towing · Truck builds
## Why Upgrade Matters for Ford
Factory exhaust components are engineered to a budget and a set of average expectations. The engineering team responsible for the factory spec had to balance cost, mass-market appeal, regulatory compliance, and warranty exposure — none of which prioritize the kind of performance a serious truck or SUV owner actually needs.
The factory exhaust exhaust system uses a muffler design optimized for quiet operation and regulatory compliance, not for extracting performance. The result is measurable backpressure at wide-open throttle — backpressure that directly costs you horsepower and torque. A MagnaFlow cat-back exhaust system removes that restriction while engineering the exhaust tone for quality and character, not just volume.
## Installation and Compatibility
This MagnaFlow cat-back exhaust system is designed to fit the Ford using factory mounting positions and existing hangers. No cutting or welding is required on most configurations. Hardware is included, and all systems are designed to work with factory catalytic converters to maintain emissions compliance.
This product is designed and tested specifically for the Ford. If your vehicle has factory performance packages that may affect fitment, verify compatibility using your vehicle's build sheet or contact technical support before ordering.
## Complete Your Build with Bull Strap
If you're upgrading your Ford's exhaust system, your suspension travel and drivetrain protection deserve the same attention. Bull Strap limit straps are the final piece of the suspension puzzle — engineered and manufactured in the USA to control maximum droop travel and protect your axles, CV joints, and brake lines from overextension under articulation.
Bull Strap limit straps are made in the USA from high-tenacity webbing and proprietary hardware and are the choice of professional fabricators and serious off-road builders who understand that uncontrolled droop is how you destroy expensive components. Pair them with your MagnaFlow exhaust upgrade for a complete, properly engineered suspension system.
## Frequently Asked Questions
**Will this MagnaFlow cat-back exhaust system fit my Ford?**
Yes — this product is designed and validated for the Ford. Fitment data is verified against factory specifications. If you have a vehicle with unusual factory options or prior modifications, verify those don't affect the installation before ordering.
**How does MagnaFlow's cat-back exhaust system compare to the factory OEM equivalent?**
The factory cat-back exhaust system was designed to a budget and an average use case. MagnaFlow's engineering prioritizes performance, durability, and real-world function over cost minimization. In practical terms, you'll notice the difference in throttle response, power delivery under load, and the quality of the exhaust tone across the RPM range.
**Is this cat-back exhaust system covered by a warranty?**
MagnaFlow stands behind the quality of their products with manufacturer warranty coverage. Specific warranty terms vary by product line — refer to the product documentation or contact MagnaFlow directly for warranty details applicable to this part. MagnaFlow's warranty reflects their confidence in the quality of their manufacturing and materials.
**Can I install this cat-back exhaust system myself, or do I need a professional?**
Installation difficulty varies by cat-back exhaust system and vehicle. Exhaust installations are typically straightforward for experienced home mechanics with access to a lift. The main requirement is a safe way to access the vehicle's underside with adequate clearance to manipulate the new components into place.
## Build Quality and Value
MagnaFlow products are not the cheapest option for your Ford. They are not designed to be. Budget components in critical systems — exhaust components that your vehicle's capability and, in some cases, safety depend on — create a false economy. The cost of a component failure in a critical system far exceeds the delta between a quality product and a cut-rate alternative. MagnaFlow prices reflect genuine engineering investment, quality materials, precise manufacturing, and the validation process that ensures the product performs exactly as specified across its full service life.
For Ford owners who depend on their vehicles in demanding conditions, the calculation is straightforward: invest in components that perform when you need them to, last as long as the vehicle, and back that promise with manufacturer warranty coverage. This MagnaFlow cat-back exhaust system meets that standard.
For professional builders, fleet managers, and serious enthusiasts who track performance across their builds, MagnaFlow's consistent engineering standards mean predictable outcomes. When you specify MagnaFlow for a Ford build, you know what you're getting.
## Real-World Performance Context
MagnaFlow products are validated in the real world, not just on engineering benches. The exhaust hardware you choose for your Ford will be asked to perform across a wide range of conditions — temperature extremes, sustained load cycles, rough terrain, and the cumulative stress of thousands of miles in demanding environments. This cat-back exhaust system is engineered to deliver consistent, repeatable performance across all of those conditions.
Exhaust systems on trucks and performance vehicles face conditions that expose the quality differences between systems immediately. High temperatures from sustained high-RPM operation, exposure to road salt and moisture, vibration from engine and drivetrain harmonics, and the thermal cycling between hot and cold all stress exhaust system joints, hangers, and tubing. MagnaFlow's construction standards and materials are chosen specifically to handle these conditions for the long term.
**What makes the Ford a good platform for exhaust upgrades?**
The Ford has an excellent foundation — Ford engineers the platform with robust frame construction, capable stock drivetrain components, and factory exhaust specs that are genuinely competent for average use. The reason aftermarket upgrades make such a difference is precisely because the factory engineers did their job well — the platform can handle more than the factory spec delivers. A MagnaFlow cat-back exhaust system lets you access that latent capability.
**How long does this cat-back exhaust system last?**
MagnaFlow components are designed for service lives that match or exceed the factory equivalent. Proper installation, periodic inspection, and maintenance appropriate to your usage intensity are the primary variables in longevity. Owners running their Ford primarily on-road under moderate loads can expect many years of service without attention. Owners running aggressive off-road applications should inspect exhaust components more frequently and follow the manufacturer's maintenance recommendations.
**Will this affect my Ford factory warranty?**
Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your vehicle warranty simply because you installed aftermarket components, unless they can demonstrate the aftermarket part caused the specific failure. That said, review your warranty terms and understand the interaction between your aftermarket components and any open factory warranty claims before installation.
Details
The MagnaFlow 2018-2023 Ford Mustang Street Series Cat-Back Performance Exhaust System 19370 brings out the personality of your 5.0L 2018-2023 Ford Mustang with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 3 Straight-Through mufflers ending in a Quad 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 19370 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. 19370 is produced using CNC precision robotic manufacturing techniques and is backed by MagnaFlow's 1-year limited finish warranty and limited lifetime construction warranty.
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2019-2020 | Ford | Mustang | Bullitt |
| 2018-2023 | Ford | Mustang | GT |
| 2018-2023 | Ford | Mustang | GT Premium |
| 2021-2023 | Ford | Mustang | Mach 1 |
Refund Policy
Bull Strap products are the highest grade cut and sewn items in the automotive industry. We are proud to support USA workers in our bid to manufacture right here in the United States.
WARRANTY
Bull Strap guarantees all products to be free from manufacturer defects for all items for one year, and any color fading (where mentioned) for 2 years from the time of purchase. In the event of a product failure, Bull Strap will decide whether that product should be repaired or replaced after reviewing photos submitted by the customer. Bull Strap will then provide a return shipping label for any product in which the material or stitching were determined to be the root cause. Once received, the product will be repaired or replaced and returned to the customer at no cost.
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Seat covers and other custom made items, retain all warranties listed above, but cannot be refunded or exchanged at any time
On non-custom items, if within 30 days of purchase directly from Bull Strap, a customer would like to return an unused product with no modifications, and where the item(s) can be considered 'new in box', the customer can email us at info@bullstrap.com or call us at 951-319-4008. The will be a 15% restocking fee subtracted from any returned items. Once processed, the customer must ship the product back and submit the tracking information. Bull Strap will issue a full refund minus the 15% restocking fee once the item(s) is/are received and determined to be in 'Brand New' condition. NOTE: If a customer ordered Bull Strap products from a dealer, the customer must go through this process directly with the dealer the product was ordered from.
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