When seeking to unlock the full potential of a twin cam engine, a performance exhaust system is a critical upgrade. We researched and compared numerous options, evaluating manufacturer specifications, published industry standards, and aggregating extensive owner feedback to identify the best performing twin cam exhausts available today.
Our evaluation focused on key performance indicators such as exhaust flow efficiency, sound characteristics, material durability, and overall fitment quality. This guide presents our top picks, detailing their strengths and limitations, to help you make an informed decision for your vehicle.
| Photo | Product | Score | Buy |
|---|---|---|---|
 |
Borla S-Type Cat-Back Exhaust Top Pick 304 Stainless Steel Construction, Patented S-Type Mufflers |
8.9 | 🛒 Check Price |
 |
MagnaFlow Street Series Cat-Back Exhaust Runner-Up Straight-Through Muffler Design, Lifetime Warranty |
8.6 | 🛒 Check Price |
 |
Corsa Sport Cat-Back Exhaust Premium Performance RSC Technology for Drone Cancellation |
8.3 | 🛒 Check Price |
 |
Flowmaster Outlaw Cat-Back Exhaust Aggressive Sound Choice Aggressive Scavenger Mufflers |
7.9 | 🛒 Check Price |
 |
MBRP XP Series Cat-Back Exhaust Durable Daily Driver T409 Stainless Steel Construction |
7.6 | 🛒 Check Price |
 |
Remark Touring Cat-Back Exhaust Refined Tone Option Resonated Mid-Pipe for Reduced Drone |
7.4 | 🛒 Check Price |
 |
Invidia Q300 Cat-Back Exhaust Balanced Performance Large Diameter Piping, Dual Muffler Design |
7.1 | 🛒 Check Price |
1. Borla S-Type Cat-Back Exhaust: Top Pick
In our evaluation, the Borla S-Type stands out for its meticulous engineering and balanced performance. While it offers a noticeable increase in exhaust volume and a sportier tone compared to stock systems, based on owner feedback, some individuals seeking an extremely loud or raw exhaust note might find its S-Type sound profile to be somewhat reserved. It strikes a balance that appeals to many, but it is not the most uninhibited option.
Those who prioritize the absolute loudest exhaust or prefer a less refined, more raucous sound may want to consider other options. The Borla S-Type is best suited for drivers who desire a significant auditory upgrade and performance enhancement without compromising on cabin comfort during highway cruising.
- Delivers an aggressive, yet refined exhaust note without excessive drone.
- Constructed from premium T-304 austenitic stainless steel for maximum durability.
- Mandrel-bent tubing ensures unrestricted exhaust flow for optimal performance gains.
Pros: Excellent balance of aggressive sound and daily drivability.; Superior corrosion resistance and long-term durability.; Engineered for a direct, bolt-on fitment on compatible vehicles.
Cons: The sound profile, while balanced, may not be aggressive enough for some enthusiasts.
2. MagnaFlow Street Series Cat-Back Exhaust: Runner-Up
The MagnaFlow Street Series consistently delivers on its promise of a powerful sound and performance. However, based on aggregated owner feedback, a recurring minor aesthetic concern is the tendency for the polished exhaust tips to show soot accumulation more prominently than some other systems. While this is primarily a cosmetic issue and does not impact performance, it means more frequent cleaning might be desired to maintain its pristine appearance.
Drivers who are highly particular about maintaining a spotless exterior with minimal effort might find this aspect slightly inconvenient. This system is an excellent choice for those prioritizing a deep, classic performance sound and proven power delivery, and who are willing to perform routine cleaning to keep the tips looking their best.
- Utilizes a straight-through, wide-open muffler design for maximum performance.
- Crafted from 100 percent stainless steel for robust construction and longevity.
- Provides a smooth, deep tone that enhances the vehicle's natural sound.
Pros: Proven performance gains through efficient exhaust scavenging.; Renowned for its deep, resonant exhaust note.; Backed by a limited lifetime warranty, reflecting confidence in durability.
Cons: Some owner feedback indicates the exhaust tips can accumulate soot quickly.
3. Corsa Sport Cat-Back Exhaust: Premium Performance
The Corsa Sport system is highly regarded for its innovative RSC technology, which effectively eliminates drone, a common complaint with many aftermarket exhausts. However, this advanced engineering and the use of premium materials mean that the Corsa Sport typically represents a higher investment compared to some other performance options. While the value is evident in its performance and comfort, it is a consideration for budget-conscious buyers.
Individuals operating on a strict budget for their exhaust upgrade might find the initial cost prohibitive. This system is ideally suited for enthusiasts who prioritize a premium, drone-free driving experience and are willing to invest in top-tier technology and craftsmanship for their twin cam vehicle.
- Features Corsa's patented Reflective Sound Cancellation (RSC) technology to eliminate drone.
- Manufactured from premium 304 stainless steel for superior heat and corrosion resistance.
- Designed for an aggressive sound under acceleration and quiet operation at cruise.
Pros: Virtually no drone at cruising speeds, a significant comfort advantage.; High-quality materials ensure long-term reliability.; Delivers a distinct, powerful exhaust note when you accelerate.
Cons: The premium technology and materials contribute to a higher investment.
4. Flowmaster Outlaw Cat-Back Exhaust: Aggressive Sound Choice
The Flowmaster Outlaw series is synonymous with an incredibly aggressive and loud exhaust note, making it a favorite for those who want to be heard. However, based on owner feedback and our evaluation of its design, this extreme sound profile often comes with a trade-off: significant cabin drone, particularly at cruising speeds or specific RPM ranges. This can make long drives less comfortable and impact the daily drivability for some.
Drivers who prioritize cabin quietness or frequently embark on extended highway journeys should carefully consider this limitation and may prefer a system with drone cancellation technology. The Flowmaster Outlaw is best suited for enthusiasts who desire the loudest possible exhaust and are willing to tolerate increased interior noise for that signature aggressive sound.
- Engineered for the most aggressive sound profile in the Flowmaster lineup.
- Features scavenger series mufflers for maximum sound and performance.
- Constructed from 409S stainless steel for durability and value.
Pros: Delivers an exceptionally loud and aggressive exhaust note.; Offers noticeable performance improvements through efficient exhaust flow.; Generally straightforward installation with factory-style hangers.
Cons: The aggressive sound can lead to significant cabin drone at certain RPMs.; Made with 409S stainless steel, which is less corrosion resistant than 304SS.
5. MBRP XP Series Cat-Back Exhaust: Durable Daily Driver
The MBRP XP Series offers a solid performance upgrade with a focus on durability and a moderate sound enhancement, making it a good choice for daily drivers. However, based on our comparison of material specifications, while T409 stainless steel offers good corrosion resistance, it is not as resilient to rust and pitting in harsh environments, such as areas with heavy road salt, as the higher grade T304 stainless steel used in some premium systems. This means that over many years in challenging climates, some surface corrosion might eventually appear.
Drivers living in regions with severe winters or coastal environments who expect absolute maximum, long-term corrosion protection without any potential for surface rust may want to consider full 304 stainless steel options. The MBRP XP Series is a strong contender for those seeking a reliable, performance-oriented exhaust that offers a noticeable upgrade in sound and power at a competitive value.
- Built with T409 stainless steel for enhanced durability and corrosion resistance.
- Designed to deliver a moderate performance tone, louder than stock but not overly aggressive.
- Mandrel-bent tubing ensures smooth exhaust gas flow for improved horsepower and torque.
Pros: Good balance of sound, performance, and durability for everyday use.; T409 stainless steel offers better corrosion resistance than aluminized steel.; Straightforward installation for many applications.
Cons: The sound profile might be too subdued for those seeking a truly aggressive note.; T409 stainless steel is not as corrosion resistant as T304 stainless steel.
6. Remark Touring Cat-Back Exhaust: Refined Tone Option
The Remark Touring Cat-Back exhaust is designed for those who appreciate a refined, slightly louder than stock exhaust note without the harshness or drone associated with more aggressive systems. However, based on our evaluation of performance-focused designs, its emphasis on a milder sound profile and drone reduction often means that the peak horsepower and torque gains might not be as dramatic as those offered by systems engineered with an absolute focus on minimal restriction and maximum flow, such as some race-oriented options. The performance increase is present, but it’s not the primary, standout feature.
Drivers whose sole objective is to extract every last horsepower and torque unit, and who prioritize maximum raw performance above all else, including sound refinement, may find this system too conservative. The Remark Touring is an excellent choice for those seeking a high-quality, durable exhaust that enhances the driving experience with a pleasant, unobtrusive sound.
- Features a resonated mid-pipe to minimize drone and refine the exhaust tone.
- Constructed from 304 stainless steel for good durability and appearance.
- Offers a mild to moderate exhaust note, suitable for daily driving.
Pros: Good balance of enhanced sound without being overly loud or droney.; Quality 304 stainless steel construction.; Often provides a clean, understated aesthetic with polished tips.
Cons: Performance gains may be less aggressive compared to some race-focused systems.; The sound might be too quiet for enthusiasts desiring a very aggressive exhaust.
7. Invidia Q300 Cat-Back Exhaust: Balanced Performance
The Invidia Q300 is a popular choice for its deep, sporty exhaust note and solid performance characteristics. However, based on aggregated owner feedback, while generally well-regarded, there are instances where some users report experiencing a noticeable drone at specific engine RPMs, particularly during highway cruising. This is a common challenge with many aftermarket exhaust designs and can vary based on vehicle acoustics and individual sensitivity.
Individuals who are particularly sensitive to cabin noise or frequently drive long distances at constant speeds where drone might manifest should consider this potential drawback. The Invidia Q300 is a strong option for those seeking a robust performance exhaust with a pleasing deep tone, provided they are aware of the possibility of some drone depending on their specific vehicle and driving habits.
- Features large diameter piping for optimized exhaust flow and reduced back pressure.
- Equipped with a dual muffler design to achieve a deep, resonant tone.
- Constructed from polished 304 stainless steel for durability and aesthetics.
Pros: Produces a deep, sporty tone that is generally well-received.; Good quality 304 stainless steel construction.; Designed for improved exhaust flow, contributing to performance.
Cons: Some owner feedback indicates potential for drone at specific RPM ranges.; The polished finish on mufflers and tips can require regular cleaning to maintain luster.
Frequently Asked Questions
What makes a 'performing' twin cam exhaust different?
A performing twin cam exhaust is engineered to optimize exhaust gas flow, reduce back pressure, and often reduce overall weight compared to stock systems. This typically results in increased horsepower and torque, improved throttle response, and a more aggressive or refined exhaust note. Materials like 304 stainless steel and mandrel-bent tubing are common features.
Will a performance exhaust improve my fuel economy?
While a performance exhaust can improve engine efficiency by reducing back pressure, which theoretically could lead to better fuel economy, this is not its primary purpose. Any potential fuel economy gains are often offset by the driver’s tendency to utilize the newfound power and sound, leading to more aggressive driving. Significant, consistent fuel economy improvements are generally not a guaranteed outcome.
Do I need a tune after installing a performance exhaust?
For most cat-back or axle-back performance exhaust systems, a tune is not strictly necessary for the vehicle to run safely or correctly. However, to maximize the performance gains from the exhaust and ensure optimal air/fuel ratios, especially if combined with other intake modifications, a professional engine tune is highly recommended. It allows the engine’s computer to fully adapt to the increased airflow.
What is exhaust drone and how can I avoid it?
Exhaust drone is a low-frequency, resonant humming sound that occurs inside the cabin, typically at certain engine RPMs during cruising. It can be caused by sound waves resonating within the exhaust system and vehicle chassis. To avoid it, look for exhaust systems that incorporate drone-canceling technologies, such as Corsa’s RSC technology, or those with resonators and well-designed mufflers that specifically target and mitigate these frequencies.
Is stainless steel always the best material for an exhaust?
Stainless steel is generally considered superior for performance exhausts due to its excellent corrosion resistance and durability. However, there are different grades. T304 stainless steel offers the best resistance to rust and pitting, making it ideal for harsh climates. T409 stainless steel is a more cost-effective option with good corrosion resistance, but it is not as robust as T304 in extreme conditions. Aluminized steel is the least expensive but offers the lowest corrosion resistance.
Our Verdict
After extensive research and comparison, the Borla S-Type Cat-Back Exhaust emerges as our top pick for the best performing twin cam exhaust, offering an exceptional blend of aggressive sound, refined comfort, and premium durability. Its patented S-Type mufflers deliver a compelling exhaust note without excessive drone. For a strong runner-up, the MagnaFlow Street Series Cat-Back Exhaust stands out with its proven performance gains, deep resonant tone, and robust stainless steel construction backed by a lifetime warranty, making it a highly reliable choice for enthusiasts.
