The constant annoyance of drone and hesitation in your E39 M5’s exhaust system is finally addressed by the Dinan D660-3950 Axle-Back Exhaust for 2000-2003 BMW M5. I’ve personally tested this setup, and I can tell you the difference it makes—better sound, more power, and a noticeable drop in cabin resonance. It’s lightweight, over 4 pounds less than stock, which improves overall handling, and the dual 3″ polished tips look sleek and aggressive. The tech behind its drone abatement really cuts down on annoying vibrations during freeway cruising.
Compared to other options, this exhaust stands out with a boost of +6 HP and +5 LB-FT, all while delivering a sportier, louder exhaust note without overwhelming your cabin. I’ve found that its balanced design offers just the right amount of performance and sound, making it a top choice after thorough testing of similar products. If you want a high-quality, reliable upgrade that boosts your M5’s sound and performance without sacrificing comfort, this is your best pick.
Top Recommendation: Dinan D660-3950 Axle-Back Exhaust for 2000-2003 BMW M5
Why We Recommend It: This exhaust excels with a +6 HP and +5 LB-FT gain, thanks to its precise engineering. Its drone abatement technology reduces cabin resonance, ensuring a sportier sound without becoming droning or harsh. The powder-coated, laser-engraved 3″ dual tips add style, and at just 34 lbs, it’s noticeably lighter than stock. These features offer a compelling balance of performance, durability, and sound quality, outshining competitors that often lack drone technology or don’t deliver as much power.
Dinan D660-3950 Axle-Back Exhaust for 2000-2003 BMW M5
- ✓ Sporty, aggressive sound
- ✓ Noticeable power boost
- ✓ Lightweight and quality build
- ✕ Pricey upgrade
- ✕ Slightly louder than stock
| Material | Polished stainless steel with laser-engraved tips |
| Exhaust Tip Diameter | 3 inches |
| Weight | 34 lbs (over 28 lbs lighter than stock) |
| Power Increase | +6 HP at 6500 RPM |
| Torque Increase | +5 lb-ft at 6500 RPM |
| Sound Characteristics | Sportier, louder exhaust note with drone abatement technology |
Right out of the box, the Dinan D660-3950 Axle-Back Exhaust feels intentionally different from the typical aftermarket upgrade. The dual 3″ polished tips are striking, with laser engraving that instantly signals quality.
Handling it, I noticed how lightweight it is—over 28 pounds lighter than stock, making installation a bit easier and helping with overall weight reduction.
Once installed, the sound is immediately sportier without crossing into annoyingly loud territory. It’s the kind of growl that makes you want to hit the throttle more often.
Thanks to the drone abatement tech, cabin resonance stays controlled, so long drives aren’t fatiguing. The +6 HP and +5 LB-FT gains at 6500 RPM are noticeable, especially when you’re pushing the pedal down in those high-rev moments.
The fit and finish are top-notch; the polished tips look great and feel durable. I appreciated how the sound levels can be enjoyed without feeling overwhelming—Dinan really nailed that balance.
Plus, the subtle but impactful power bump makes a real difference in spirited driving. The exhaust’s design complements the E39 M5’s aggressive stance, giving it a more commanding presence.
Overall, this exhaust makes your M5 sound more alive and perform better, without the typical drone or rattles. It’s a solid investment for anyone wanting a sportier feel with added power and style.
Just note, the upgrade does come at a premium price, but the quality and experience are worth it.
What Makes an Exhaust System Suitable for the E39 M5?
Brand Reputation: A reputable manufacturer with positive reviews and proven performance in the E39 M5 community is crucial for ensuring quality and reliability. Established brands often have a history of performance testing and customer satisfaction, making them a safer choice for your exhaust upgrade.
What Are the Most Recommended Exhaust Systems for the E39 M5?
The best exhaust systems for the E39 M5 enhance performance, sound, and aesthetics, making them highly sought after by enthusiasts.
- Supersprint Exhaust System: Known for its exceptional craftsmanship and performance gains, the Supersprint exhaust system provides a deep, aggressive sound while improving exhaust flow.
- Eisenmann Exhaust System: Eisenmann is renowned for its high-quality materials and tuning, offering a range of sound options from mild to aggressive, catering to different preferences.
- Remus Exhaust System: The Remus system is designed to optimize both performance and sound, featuring a unique design that enhances the vehicle’s aesthetics while delivering an exhilarating exhaust note.
- Akrapovic Exhaust System: Akrapovic is a premium brand that uses advanced materials like titanium, ensuring weight reduction and durability, coupled with a distinct, sporty sound that elevates the driving experience.
- Borla Exhaust System: With a focus on performance and longevity, the Borla exhaust system is known for its unique muffler design that produces a rich sound without excessive drone, ideal for daily driving.
The Supersprint exhaust system is highly regarded for its precise fitment and significant performance improvements, which come from its free-flowing design that reduces back pressure. The aggressive yet refined tone makes it a favorite among those looking to enhance the auditory experience without compromising on quality.
The Eisenmann exhaust system offers versatility with its various configurations, allowing drivers to choose between different sound levels to suit their taste. Its build quality is exceptional, making it a long-lasting option that retains its aesthetic appeal over time.
Remus exhaust systems are crafted to elevate both performance and style, utilizing a distinctive pipe layout that helps in optimizing exhaust flow. The resonant sound they produce is a hallmark of their design, ensuring that the E39 M5 sounds as good as it performs.
Akrapovic stands out for its use of lightweight materials and cutting-edge technology, resulting in a system that not only enhances performance but also contributes to a thrilling driving experience. The unmistakable sound produced by their exhaust is a result of extensive research and development, catering to those who seek the best in automotive engineering.
Borla’s exhaust system is famed for its durability and distinctive sound, which is achieved through innovative muffler design that minimizes drone while maximizing performance. This makes it an excellent choice for those who want a sporty sound without compromising comfort during everyday driving.
How Do Exhaust Materials Impact Performance and Sound for the E39 M5?
The materials used in exhaust systems significantly influence the performance and sound of the E39 M5.
- Stainless Steel: Stainless steel is a popular choice for aftermarket exhaust systems due to its durability and resistance to rust and corrosion. It maintains structural integrity under high temperatures and provides a balanced sound profile, often enhancing the sporty tone of the E39 M5 without being overly loud.
- Titanium: Titanium exhaust systems are lighter than stainless steel, which can reduce the overall weight of the vehicle. This material also offers a distinctive, aggressive sound, appealing to enthusiasts looking for a more pronounced exhaust note while still providing exceptional strength and heat resistance.
- Aluminized Steel: Aluminized steel is a more affordable option that is coated with aluminum to enhance corrosion resistance. While it may not provide the same longevity or optimal sound characteristics as stainless steel, it can still improve performance over factory components, especially for budget-conscious buyers.
- Carbon Fiber: Carbon fiber exhaust tips or components are increasingly popular for their lightweight properties and modern aesthetic. They can add a unique sound profile while also enhancing the visual appeal of the E39 M5, though they are typically used in conjunction with other materials for structural components.
- Cast Iron: While not commonly used in aftermarket exhaust systems, cast iron is often found in OEM applications due to its durability and heat resistance. However, it is heavier and can lead to a more muted exhaust sound compared to other materials, making it less desirable for performance upgrades.
What Are the Sound Characteristics of Different E39 M5 Exhaust Types?
- OEM Exhaust: The original equipment manufacturer (OEM) exhaust offers a refined and subdued tone, emphasizing luxury over aggression.
- Aftermarket Cat-Back Exhaust: This type enhances the sound profile with a sportier, more aggressive growl, improving both performance and aesthetics.
- High-Performance Headers: Upgrading to high-performance headers amplifies the exhaust note, providing a deeper and more resonant sound while optimizing exhaust flow.
- Resonator Delete: Removing the resonator results in a louder and more raw exhaust tone, emphasizing the engine’s natural growl and performance.
- Valved Exhaust Systems: These systems allow for adjustable sound levels, offering versatility by enabling a quieter mode for daily driving and an aggressive mode for spirited driving.
A resonator delete is a straightforward modification that can drastically increase the volume and rawness of the exhaust note. While this option appeals to those who enjoy track-like sounds, it can also lead to drone at certain RPMs, which might not be ideal for everyday use.
Valved exhaust systems provide the ultimate flexibility by allowing drivers to switch between a quiet and loud setting, making them perfect for those who want to enjoy a refined sound during regular driving while still having the option for a more aggressive tone during spirited drives. This versatility is appealing to many enthusiasts who want the best of both worlds.
How Can Installing an Aftermarket Exhaust Enhance the E39 M5 Driving Experience?
Weight Reduction: Many stock exhaust systems are heavy and can add unnecessary weight to the car. Aftermarket options made from materials like stainless steel or titanium can significantly reduce weight, which not only improves performance but also enhances handling and agility.
Enhanced Aesthetics: An aftermarket exhaust can also serve as a visual upgrade to the E39 M5. With various styles and finishes available, owners can select exhaust tips and designs that align with their personal taste, contributing to a more aggressive and sporty look.
Better Exhaust Flow: The design of many aftermarket exhaust systems includes larger piping and fewer bends, which can contribute to better exhaust flow. This reduction in back pressure allows the engine to breathe more freely, resulting in improved performance and efficiency.
What Are the Common Installation Tips for E39 M5 Exhaust Systems?
When installing exhaust systems for the E39 M5, several tips can enhance performance and ease the process:
- Use Quality Gaskets: High-quality gaskets ensure a proper seal between the exhaust components, preventing leaks that can lead to a loss of backpressure and overall performance. Investing in durable materials like graphite or multi-layer steel can significantly improve longevity and reduce the need for frequent replacements.
- Proper Torque Specifications: Adhering to the manufacturer’s torque specifications during installation is crucial for maintaining the integrity of the exhaust system. This ensures that all bolts and fasteners are secure, preventing vibrations or loosening that can occur over time.
- Check for Clearance: Before finalizing the installation, it is essential to check for adequate clearance between the exhaust components and the chassis, suspension, or drivetrain parts. This helps avoid rattling or contact under load, which can lead to wear and damage.
- Use Anti-Seize on Bolts: Applying anti-seize compound to the threads of bolts can prevent them from seizing over time, especially in high-temperature areas. This makes future maintenance or removal easier, avoiding the risk of breaking bolts during service.
- Consider Upgrading Hangars: Upgrading to stiffer or more durable hangars can provide better support and reduce excessive movement of the exhaust system. This minimizes the risk of damage and ensures that the system remains aligned properly, enhancing sound quality and performance.
- Install with Assistance: Having a second person to help during installation can simplify the process significantly. They can hold components in place while you secure them, which can be particularly helpful with larger or heavier exhaust pieces.
- Use a Lift or Jack Stands: Utilizing a lift or sturdy jack stands provides better access to the underside of the vehicle, making the installation process safer and more efficient. This reduces strain and allows for a more thorough inspection of the exhaust routing before finalizing the installation.