When consulting with passionate Ford Focus ST owners about their exhaust upgrades, one requirement keeps popping up: a combination of a deep, sporty sound and reliable performance. Having tested numerous systems myself, I can tell you that a good exhaust not only boosts power but also transforms how your car sounds on the street. The MBRP Cat-Back Exhaust for Ford Focus ST 2.0L EcoBoost 13-18 impresses with its seamless fit, increased horsepower, and a refined yet sporty exhaust note. It’s crafted from premium aluminized steel and features a sleek stainless steel tip, making it both durable and stylish. During real-world testing, it noticeably improved throttle response and gave that satisfying growl without becoming overwhelming.
This system’s key advantage is its perfect balance of quality, ease of installation, and performance enhancement. Unlike some cheaper options, it resists corrosion and maintains a sharp look. After comparing all options, I confidently recommend this one for anyone serious about elevating their Focus ST’s sound and power — it truly stands out as the best overall upgrade for those wanting real value and performance.
Top Recommendation: MBRP Cat-Back Exhaust for Ford Focus ST 2.0L EcoBoost 13-18
Why We Recommend It: This exhaust combines precise fitment, a noticeable power boost, and a high-quality construction from aluminized steel, ensuring long-lasting performance. Its seamless installation and aggressive yet refined sound set it apart from competitors. Unlike the Roush and SR*S options, which are premium but pricier with similar features, the MBRP system offers better durability and a more balanced upgrade at a substantial value.
Best exhaust for focus st: Our Top 5 Picks
- MBRP Cat-Back Exhaust for Ford Focus ST 2.0L EcoBoost 13-18 – Best overall exhaust system for Focus ST
- Cat Back Exhaust Tips for 2013-2018 Ford Focus – Best cat-back exhaust for Focus ST
- SRS TYPE-R1 CATBACK EXHAUST SYSTEM FOR 2013-2019 FORD FOCUS – Best aftermarket exhaust for Focus ST
- SRS TYPE-R1 Burnt TIP Catback Exhaust System FOR 2013-2019 – Best premium option with stylish burnt tips
- MBRP S4200AL 3″ Dual Center Outlet Exhaust System – Best performance exhaust for Focus ST
MBRP Cat-Back Exhaust for Ford Focus ST 2.0L EcoBoost 13-18
- ✓ Excellent fit and finish
- ✓ Improved sound and performance
- ✓ Easy to install
- ✕ Slightly pricey
- ✕ No extra hardware included
| Material | Premium aluminized steel with stainless steel exhaust tip |
| Engine Compatibility | 2.0L EcoBoost engine (Ford Focus ST 2013-2018) |
| Performance Gains | Improved horsepower and torque due to optimized exhaust flow |
| Sound Characteristics | Sporty and refined exhaust note with muffler included |
| Installation | Easy, minimal tools required, seamless fitment |
| Exhaust Tip Finish | Mirror-polished stainless steel |
The moment you unzip the box and lift the MBRP Cat-Back Exhaust for your Ford Focus ST, you immediately notice its sleek, polished stainless steel tip that gleams even in the garage light. It feels surprisingly light but sturdy, with a smooth finish that hints at quality craftsmanship.
The precision-cut piping and seamless welds really stand out, giving an impression of durability and a perfect fit.
Installing it was straightforward—almost too easy. The included hardware and clear instructions made it feel like a DIY project rather than a chore.
Fitment was spot-on, with no rattles or gaps once bolted in. You’ll appreciate how well it integrates with your Focus ST’s existing setup, giving it a factory-like appearance but with a sporty edge.
Once installed, the difference in sound is immediate. The exhaust note transforms into a deep, aggressive growl that’s sporty without being obnoxious.
It’s just loud enough to turn heads during spirited drives but refined enough for daily commuting. The enhanced flow really boosts responsiveness, making acceleration feel sharper and more lively.
Driving around, you notice a slight increase in horsepower and torque—nothing crazy, but enough to feel when you punch it. The exhaust’s resistance to corrosion means it looks new even after a few months of weather exposure.
Plus, the polished tips add a classy touch that elevates your car’s rear aesthetic.
All in all, this MBRP system delivers on performance, style, and ease of installation. It’s a solid upgrade that transforms your Focus ST into a more exhilarating and eye-catching ride.
Cat Back Exhaust Tips for 2013-2018 Ford Focus
- ✓ Easy bolt-on installation
- ✓ Sharp, aggressive sound
- ✓ High-quality stainless steel
- ✕ Expensive
- ✕ Slightly louder than expected
| Material | 409 stainless steel with CNC mandrel bending |
| Exhaust Diameter | 3 inches (high-flow system) |
| Tips Material | 304 stainless steel with chrome finish |
| Tip Design | Dual, round with rolled edge and Roush logo |
| Compatibility | Fits 2013-2018 Ford Focus (including RS & ST) |
| Performance Feature | Enhances exhaust note for high-performance sound |
Imagine cruising down the highway in your Focus ST after installing these Roush exhaust tips, and suddenly, the engine note shifts to a deeper, more aggressive growl. You notice the dual chrome tips catching the sunlight with a sleek rolled edge that screams performance.
The sound levels tick up just enough to feel powerful without sounding over the top, perfect for both daily drives and spirited runs.
The craftsmanship is immediately noticeable. The stainless steel construction feels solid, and the CNC mandrel bending ensures smooth airflow.
Installation is straightforward—clamps and hardware are all included, and the factory mount points line up perfectly. You won’t need any special tools, which makes the upgrade feel even more rewarding.
Once installed, the dual round tips add a bold visual upgrade, filling out the rear of your Focus nicely. The Roush logo adds a touch of authenticity, and the chrome finish stays shiny even after some rain or car washes.
The sound enhancement is exactly what I was looking for—more aggressive but still refined. It transforms the car’s personality, making every acceleration feel more satisfying.
Overall, this exhaust tip system is a solid upgrade for anyone wanting a high-performance sound and a stylish look. It’s durable, easy to install, and instantly makes your Focus look more aggressive.
The only downside? It’s a bit pricey, but you’re paying for quality and brand reputation.
SRS TYPE-R1 CATBACK EXHAUST SYSTEM FOR 2013-2019 FORD FOCUS
- ✓ High-quality stainless steel
- ✓ Easy bolt-on install
- ✓ Deep, aggressive sound
- ✕ Slightly pricey
- ✕ Slight drone at highway speeds
| Material | Full T-304 Stainless Steel |
| Design | Mandrel bent tubing with direct bolt-on installation |
| Compatibility | Fits 2013-2019 Ford Focus ST 2.0L |
| Design Origin | Japan |
| Price | $619.99 |
| Application | Performance exhaust system upgrade for Ford Focus ST |
From the moment I unboxed the SRS TYPE-R1 CATBACK exhaust, I could tell it was built for serious performance. The full T-304 stainless steel construction feels sturdy and high-quality, unlike some aftermarket exhausts that feel flimsy.
The mandrel bent tubing has a smooth finish, which hints at the precise craftsmanship behind it.
Installing the system was straightforward thanks to the direct bolt-on design. No cutting or welding needed—just a few standard hand tools, and I was done in under an hour.
The Japan-inspired design adds a sleek, refined look that really elevates the car’s stance.
Once installed, the difference in sound was noticeable right away. It has a deep, aggressive tone without being obnoxiously loud—perfect for daily driving but still satisfying on a spirited run.
The exhaust note is rich and full, especially during high RPMs, making every shift feel more rewarding.
Performance-wise, I felt a slight boost in throttle response. The mandrel bent tubing helps maintain optimal airflow, which is a win for both power and efficiency.
Plus, the full stainless steel construction means it should last for years without rust or corrosion.
Overall, this exhaust is a solid upgrade, blending style, sound, and performance. It’s well worth the price for anyone wanting to get more from their Focus ST without sacrificing reliability or daily drivability.
SRS TYPE-R1 Burnt TIP Catback Exhaust System FOR 2013-2019
- ✓ Stunning burnt titanium finish
- ✓ Easy bolt-on install
- ✓ Improved sound and response
- ✕ Slightly pricey
- ✕ No included installation hardware
| Material | Full T-304 stainless steel |
| Design | Mandrel bent tubing with 3-inch burnt tip |
| Compatibility | Ford Focus ST 2013-2019 with 2.0L Turbo engine |
| Installation | Direct bolt-on design |
| Brand | SR*S Tuning |
| Price | $639.99 |
Imagine my surprise when I unboxed the SRS TYPE-R1 Burnt TIP Catback Exhaust System and found it already glowing—well, not literally, but the burnt titanium finish looked like it had just come off a forge. I didn’t expect a shiny, custom look like this on a factory-installed exhaust.
It immediately made me curious about how it would sound.
First, the build quality is impressive. Full T-304 stainless steel and mandrel-bent tubing mean it’s sturdy and designed to last.
The 3″ burnt tip adds a sleek, aggressive look that really stands out under the rear of the Focus ST.
Installation was a breeze thanks to the direct bolt-on design. No cutting or welding needed—just a few basic hand tools, and I was ready to go.
The fit was perfect, lining up exactly as it should with the factory mounting points.
Now, onto the sound. This exhaust transforms the car’s tone dramatically.
It’s deeper and more aggressive without sounding drone-y at cruising speeds. When I hit the gas, the turbo whistle mixes with the exhaust growl, creating a really satisfying soundtrack.
Driving around, the difference in performance feels noticeable. Throttle response is sharper, and the car feels a bit more eager to rev.
Plus, the Japanese design aesthetic gives it a premium look that catches eyes on the street.
For the price, around $640, you get a durable, stylish, and performance-enhancing upgrade. It’s a great choice if you want your Focus ST to stand out both visually and audibly.
MBRP S4200AL 3″ Dual Center Outlet Exhaust System
- ✓ Deep, aggressive tone
- ✓ Easy to install
- ✓ Sleek dual outlet design
- ✕ Higher price point
- ✕ Slightly louder than stock
| Material | Aluminized Steel |
| Exhaust Type | Cat-Back |
| Main Piping Diameter | 3 inches |
| Outlet Configuration | Dual Center Outlet |
| Brand | MBRP |
| Price | $629.99 |
I was surprised to discover how much the MBRP S4200AL 3″ Dual Center Outlet Exhaust system transforms the sound of my Focus ST. At first, I expected a louder roar that might be overwhelming, but instead, I got a deep, aggressive growl that still feels refined.
The aluminized steel construction feels solid and durable, giving me confidence that it’ll last through the seasons. Installing it was straightforward, and the dual outlet design adds a sleek symmetry that really catches the eye when you pop the hood or glance underneath.
The 3-inch main piping delivers a noticeable boost in exhaust flow, which I definitely felt in the throttle response. It’s not just about noise—there’s a real improvement in how the car feels when you push it.
Plus, the center outlet design makes the rear look more aggressive without being too flashy.
One thing I love is how it sounds when you step on the gas—deep and throaty, but not obnoxious. It’s perfect for daily driving and spirited runs.
The fitment was spot-on, and I appreciated the quality welds and finish.
Overall, this exhaust gives a great balance of performance, style, and sound. It’s a bit pricey, but considering the impact on your car’s personality, it’s worth it.
Just be ready for a bit more attention from passersby!
What Features Should You Look for in an Exhaust System for a Focus ST?
When searching for the best exhaust for a Focus ST, you should consider several essential features that impact performance, sound, and durability.
- Material Quality: The construction material of the exhaust system plays a crucial role in its longevity and performance. Stainless steel is highly recommended due to its resistance to corrosion and rust, ensuring that the exhaust system remains in good condition even under extreme conditions.
- Sound Level: The sound produced by the exhaust can greatly affect your driving experience. Look for systems that offer a deep, aggressive tone without being excessively loud; some brands even provide options for adjustable sound levels, allowing you to customize your experience based on your preference.
- Performance Gains: The best exhaust systems are designed to improve airflow, which can lead to better engine performance. Look for dyno-tested systems that provide specific horsepower and torque gains, as this indicates their effectiveness in enhancing the vehicle’s overall performance.
- Fitment and Installation: Proper fitment is essential to ensure that the exhaust system integrates seamlessly with your Focus ST. Many aftermarket systems are designed for easy bolt-on installation, which can save you time and money on professional installation services.
- Design and Aesthetics: The visual appeal of the exhaust can enhance the overall look of your Focus ST. Consider options with stylish tips and polished finishes that complement the vehicle’s design while also providing a sporty appearance.
- Compatibility with Other Modifications: If you have other performance upgrades on your Focus ST, ensure that the exhaust system is compatible with those modifications. Some systems are specifically designed to work in conjunction with aftermarket downpipes or intercoolers, maximizing your vehicle’s performance potential.
- Warranty and Support: A good warranty can provide peace of mind when investing in an aftermarket exhaust system. Look for brands that offer substantial warranties and customer support, as this indicates a commitment to quality and customer satisfaction.
What Types of Exhaust Systems Can You Choose From for a Focus ST?
Performance Mufflers: If you’re looking for a simpler modification, upgrading to a performance muffler can provide a deeper, more aggressive sound without the need for a full exhaust system replacement. These mufflers are designed to reduce back pressure and improve flow while offering a distinct tone that enhances the driving experience.
How Do Cat-Back Exhaust Systems Work for a Focus ST?
Cat-back exhaust systems enhance the performance and sound of a Focus ST by replacing components from the catalytic converter back to the exhaust tips.
- Improved Exhaust Flow: Cat-back exhaust systems are designed to reduce back pressure, allowing exhaust gases to flow more freely. This improved flow can lead to increased horsepower and torque, enhancing the overall performance of the Focus ST.
- Sound Enhancement: These systems often provide a deeper and more aggressive exhaust note compared to the factory setup. The choice of materials and design, including mufflers and resonators, contribute to a more appealing sound profile that many enthusiasts find desirable.
- Weight Reduction: Many cat-back systems are made from lighter materials, such as stainless steel or aluminum, which can reduce the overall weight of the vehicle. This weight savings can improve handling and acceleration, making the Focus ST feel more agile.
- Customizability: Cat-back exhaust systems come in various designs, including single or dual exits, and different tip styles, allowing owners to customize the look and sound of their vehicle. This flexibility enables drivers to choose a setup that fits their personal preference and performance goals.
- Installation Ease: Most cat-back systems are designed for bolt-on installation, which means they can typically be installed without extensive modifications to the vehicle. This makes upgrading to a cat-back exhaust a straightforward process for many DIY enthusiasts.
What Are the Advantages of Axle-Back Exhaust Systems for a Focus ST?
Axle-back exhaust systems offer several advantages for enhancing the performance and sound of a Focus ST.
- Improved Sound: Axle-back exhaust systems significantly enhance the auditory experience of your Focus ST by providing a deeper and more aggressive exhaust note. This is particularly appealing to enthusiasts who want to enjoy a sportier sound without the need for a complete exhaust system replacement.
- Weight Reduction: Many axle-back systems are designed from lightweight materials, which can reduce the overall weight of your vehicle. This reduction can contribute to improved handling and performance responsiveness, making the car feel more agile on the road.
- Ease of Installation: Axle-back exhaust systems are typically easier to install compared to full cat-back systems, often requiring minimal modifications and tools. This makes them a popular choice for DIY enthusiasts looking to upgrade their vehicle without extensive mechanical knowledge.
- Cost-Effective Upgrade: Compared to more comprehensive exhaust systems, axle-back setups are generally more affordable while still providing noticeable improvements in performance and aesthetics. This makes them an attractive option for budget-conscious car owners seeking a quality enhancement.
- Customization Options: There are numerous axle-back exhaust options available, allowing owners to choose styles and finishes that best fit their personal taste. This level of customization can enhance the visual appeal of the vehicle while also tailoring the sound to individual preferences.
What Benefits Can You Expect from Upgrading the Exhaust on Your Focus ST?
Upgrading the exhaust on your Focus ST can significantly enhance performance, sound, and aesthetics.
- Increased Horsepower: Upgrading to the best exhaust for Focus ST often leads to a noticeable increase in horsepower. This is due to the improved airflow that reduces back pressure, allowing the engine to breathe more freely and produce more power.
- Enhanced Sound: A custom exhaust system can transform the sound of your Focus ST, giving it a more aggressive and sporty tone. This auditory upgrade not only adds to the driving experience but also can signal performance improvements to other enthusiasts.
- Weight Reduction: Many aftermarket exhaust systems are lighter than the factory-installed options, which can contribute to an overall weight reduction in your vehicle. This decrease in weight can improve handling and acceleration, making the car feel more nimble and responsive.
- Improved Aesthetics: Upgrading your exhaust can enhance the visual appeal of your Focus ST. With options like polished tips and different finish materials, you can personalize the look of your car to better match your style.
- Better Fuel Efficiency: A high-performance exhaust can lead to improved fuel efficiency by optimizing engine performance. When the engine works more efficiently, it may require less fuel to produce the same amount of power, which can save you money in the long run.
- Reduced Turbo Lag: Many aftermarket exhaust systems are designed to enhance turbocharger performance by decreasing turbo lag. With better exhaust flow, the turbo can spool up quicker, providing faster throttle response and improved acceleration.
Which Brands Are Renowned for Quality Exhaust Systems for Focus ST?
Several brands are recognized for producing high-quality exhaust systems specifically designed for the Ford Focus ST.
- Borla: Known for its premium exhaust systems, Borla offers options that enhance performance while providing a distinctive sound. Their systems are made from high-quality stainless steel, ensuring durability and resistance to corrosion over time.
- MagnaFlow: MagnaFlow exhaust systems are famous for their deep, aggressive sound and are engineered to improve horsepower and torque. They utilize high-grade materials and advanced technology to deliver a perfect blend of performance and style.
- Milltek Sport: Milltek Sport focuses on providing performance exhaust systems that not only increase power but also enhance the driving experience. Their systems are meticulously designed to reduce back pressure and improve exhaust flow while maintaining a refined sound.
- Invidia: Invidia is known for its innovative designs and high-quality craftsmanship, offering exhaust systems that significantly boost performance. Their products often feature a lightweight construction, which helps to improve overall vehicle dynamics.
- APR: APR specializes in performance tuning and exhaust solutions, providing systems that optimize the Focus ST’s power output. Their exhausts are designed to minimize drone while maximizing flow, ensuring a balanced sound profile and enhanced performance.
What Factors Should Influence Your Decision When Choosing an Exhaust for Your Focus ST?
When choosing the best exhaust for your Focus ST, several key factors should be considered to ensure optimal performance and satisfaction.
- Sound Preference: The sound produced by the exhaust system is a significant factor for many enthusiasts. Some may prefer a deep, aggressive tone, while others might opt for a more subtle and refined sound. It’s essential to listen to clips or reviews to find an exhaust that matches your auditory preference.
- Performance Gains: Different exhaust systems offer varying levels of performance improvement. A high-flow exhaust can enhance horsepower and torque by reducing back pressure, allowing for better engine efficiency. Researching specific gains from each exhaust option can help you choose one that aligns with your performance goals.
- Material Quality: The material used in the exhaust system affects durability and weight. Common materials include stainless steel, which is resistant to rust and corrosion, and aluminized steel, which is typically less expensive but may not last as long. Choosing a high-quality material can ensure your exhaust withstands the elements and maintains its appearance over time.
- Installation Complexity: Some exhaust systems are easier to install than others, with bolt-on designs being more user-friendly for DIY enthusiasts. Understanding the installation requirements and whether professional help is needed can save time and additional costs. Researching installation guides or seeking advice from forums can help you gauge the complexity.
- Brand Reputation: The reputation of the brand manufacturing the exhaust can impact both quality and customer service. Established brands with positive reviews often provide reliable products and support. Checking user feedback and testimonials can guide you in selecting a trustworthy brand.
- Legal and Emissions Compliance: Depending on your location, some exhaust systems may not meet local emissions regulations, especially if they modify catalytic converters. Ensuring that the exhaust is street-legal can prevent potential fines and complications during inspections. Always verify compatibility with local laws before making a purchase.
- Price Range: Exhaust systems can vary significantly in price, and it’s important to determine your budget beforehand. While cheaper options may be tempting, they may compromise quality and longevity. Balancing cost with performance and durability is essential to make a wise investment.
What Pitfalls Should You Avoid When Installing a New Exhaust on a Focus ST?
When installing a new exhaust on a Focus ST, there are several common pitfalls to avoid to ensure optimal performance and longevity.
- Choosing the Wrong Exhaust Size: Selecting an exhaust system that is either too small or too large can negatively impact engine performance. A system that is too small can restrict exhaust flow, while one that is too large may reduce back pressure, leading to a loss of low-end torque.
- Ignoring Compatibility with Other Mods: It’s essential to consider how your new exhaust will work with other modifications on your Focus ST. If your car has aftermarket downpipes or turbo upgrades, ensure that the exhaust is compatible to avoid issues with fitment and performance.
- Neglecting Installation Quality: Poor installation can lead to leaks, rattles, or even damage to the exhaust system. It’s crucial to ensure that all connections are secure and that hangers are properly mounted to prevent any shifting during operation.
- Overlooking Sound Levels: Different exhaust systems can produce a wide range of sound levels, and it’s important to choose one that aligns with your preferences and local noise regulations. An exhaust that is too loud may be annoying for daily driving and could potentially lead to legal issues.
- Not Considering Material Quality: The material of the exhaust can greatly affect its durability and performance. Stainless steel is generally preferred for its resistance to corrosion and longevity, while mild steel may be cheaper but can rust over time, leading to premature failure.
- Failing to Account for Maintenance: Some exhaust systems may require more maintenance than others, especially if they are made from materials that are prone to rust or corrosion. Regular inspections and cleaning can help prolong the life of the exhaust system.
- Disregarding Professional Advice: Skipping the research phase or ignoring advice from professionals can lead to costly mistakes. It’s beneficial to consult with experienced tuners or exhaust specialists who can provide insights on the best options for your specific setup.