SOUL Performance Valved Performance Exhaust System w/ Polished Chrome Tips for 991.1 Porsche 911 Carrera (non PSE)

The 991.1 Carrera Valved Performance Exhaust System by SOUL Performance has been meticulously crafted to cater to the discerning automotive enthusiast. When the valves are open, the exhaust gases can effortlessly flow through an unobstructed path, resulting in a mesmerizing symphony of the flat six engine. The captivating tone is sure to send shivers down the spine of anyone who experiences it. Whether you’re on your way to meet a client or enjoying a romantic dinner with a special someone, simply close the valves to savor a refined and understated exhaust note, thanks to the effective performance of the factory side mufflers. Rest assured, if you have concerns about any bothersome drone noise in your PDK equipped vehicle, this exhaust system will surpass your expectations.

Many owners of the 991.1 Carrera express dissatisfaction with the sound and performance of their sport exhaust system, finding it to be lacking in excitement. SOUL Performance took on the challenge of creating an exhaust system that truly embodies the Carrera’s personality—a dual-natured entity, akin to Dr. Jekyll and Mr. Hyde. Their primary objective was to engineer a system that allows exhaust gases to flow freely when the valves are open. To achieve this, Soul Performance implemented several design elements, including a larger tubing diameter, smooth radius bends, and an optimal X-pipe crossover flow configuration. These enhancements improve the exhaust scavenging effects, which in turn leads to increased volumetric efficiency. As a result, the system significantly enhances throttle response and overall performance, surpassing the limitations imposed by the factory sport exhaust’s restrictions.

Development & Testing

• The objective of SOUL Performance was to strike a balance between enhancing daily driving comfort and preserving the exhilarating race-inspired sound and straight-through exhaust design. While increasing the size of the resonator was considered, it was determined that such an approach would not yield the desired outcomes. Additionally, implementing a larger resonator would necessitate revisions to ensure proper clearances, potentially compromising the exhaust system’s high-flow design principles. Moreover, incorporating higher-flowing aftermarket headers, such as their Long Tube Street Headers, into an already aggressive rear system without appropriate sound attenuating features, had the potential to create an excessively loud and potentially unpleasant driving experience. Therefore, SOUL Performance recognized the importance of maintaining the appropriate balance between performance and acoustics to ensure an enjoyable driving experience.
• A significant number, approximately 40%, of individuals who combined their rear exhaust with upgraded headers highlighted the importance of considering this configuration and ensuring the exhaust system is appropriately engineered. To address this concern, SOUL Performance recognized the effectiveness of incorporating Helmholtz resonators, also known as anti-drone tubes, when they are engineered and utilized correctly. Specifically, in the case of the 991.1 Carrera, there exists a specific RPM range between 3,000 and 3,500 where drone frequencies can become noticeable when higher flowing exhaust components are added. SOUL Performance’s objective was to eliminate these undesirable frequencies within that range, while also achieving a smooth transition from closed to open valves on factory Porsche Sport Exhaust (PSE) equipped cars. For the base model, they devised a solution that allows for the retention of the factory side mufflers. This involves cutting the factory side mufflers and utilizing the included secondary pipes to connect them to the exhaust tips, effectively integrating them into the system.
• After extensive development and refinement, SOUL Performance has arrived at a final design that has consistently delivered exceptional outcomes for this particular application, meeting their rigorous benchmarks for sound quality and drivability. While the mathematical calculations for Helmholtz resonators can be performed, the manner in which they are incorporated into the overall design plays a crucial role in achieving optimal results. SOUL Performance’s expertise lies in effectively integrating these resonators into their exhaust system, ensuring that they are positioned and utilized in a manner that maximizes their effectiveness and aligns with their high standards.

Construction

• Every exhaust system is meticulously constructed on-site using mandrel bent T304L stainless steel with a robust wall thickness of .065″. Following the construction process, each exhaust undergoes thorough quality checks to ensure exceptional standards are met. The implementation of back purged TIG welding guarantees precise weld penetration, contributing to the longevity and durability of the exhaust system. This meticulous approach to manufacturing ensures that every aspect of the exhaust is carefully crafted and engineered to deliver optimal performance and longevity.

Sound

• The exhaust sound produced by SOUL Performance’s system is undeniably aggressive, and one of its primary advantages is the unrestricted flow provided by the 2.5″ piping from the source to the tips when the valves are open. However, they have skillfully infused the system with additional refinement to perfectly complement the premium experience synonymous with Porsche. The inclusion of the X-pipe assists in further smoothing the sound, whether the valves are open or closed.
• Overall, SOUL Performance is extremely pleased with the achieved results, and they are confident that you will be too. When the valves are open, the system’s unrestricted design delivers a captivating Cup car-inspired sound, characterized by amplified volume and an abundance of crackles and burbles during deceleration.
• This system is designed for individuals who desire heightened aggression at the mere press of a button.
• Conversely, when the valves are closed, the exhaust tone remains reasonable and refined. The system effectively minimizes drone while still allowing the distinctive sound of the flat six engine to be heard, providing a harmonious balance between serenity and performance.

Power

• When Eurocharged Canada combined their ECU tune, SOUL Valved Performance Exhaust System, and BMC Air Filters while using 93 octane fuel, they achieved impressive power gains. Specifically, their modifications unlocked an increase of 27 wheel horsepower and 36 foot-pounds of torque, prominently observed at 4000rpm. This comprehensive setup demonstrates the effectiveness of their tuning expertise and the performance enhancements brought about by their carefully selected components.

Bolt On & Go

• Every exhaust system undergoes rigorous testing in a dedicated fixture to guarantee flawless fitment before being carefully packaged with foam to ensure it arrives in impeccable condition. In each package, comprehensive installation instructions are included, allowing for a straightforward installation process that can be successfully carried out by most do-it-yourself enthusiasts. Furthermore, new high-grade hardware is provided to facilitate the installation.
• To control the operation of the valves, a valve controller kit is included with the exhaust system. This kit enables users to conveniently open and close the valves using the supplied controller fobs. Additionally, for added convenience, the controller can be paired with a HomeLink system (requiring two buttons) to integrate valve control with existing vehicle controls. With these included features, SOUL Performance aims to ensure a user-friendly experience and seamless integration of the exhaust system into the vehicle.

Features

• Straight-through 2.5″ piping, smooth bends, and X-pipe for freer flow, sharper response, and Cup car-inspired sound with valves open
• Retains factory side mufflers and uses Helmholtz resonators / anti-drone tuning for a refined, low-drone tone with valves closed
• Mandrel-bent T304L stainless construction with .065″ wall thickness and back-purged TIG welds for strength and longevity
• Engineered to work seamlessly with tunes and intake upgrades, supporting proven gains in power and torque
• Bolt-on fitment with new hardware, detailed instructions, and included valve controller (with optional HomeLink integration) for on-demand sound control
• Each system is fixture-checked for fitment, carefully foam packed, and backed by SOUL Performance’s Lifetime Warranty

Applications

• Porsche 911 Carrera: 991.1 (2011-2016)
  [3.8L F6]
  

Notes

• Ensure that attached installation instructions are followed for non PSE cars only
• The installation process for the valve controller necessitates several steps. Firstly, the rear bumper needs to be carefully removed. Next, a suitable 12V switched power source must be located and tapped into. Finally, the installation involves the proper placement and connection of the necessary vacuum lines. These essential procedures are undertaken to ensure the successful integration and functionality of the valve controller.
• For the installation of this Porsche exhaust system, SOUL Performance strongly advises seeking professional assistance. Their recommendation emphasizes the importance of relying on the expertise and experience of professionals to ensure the proper installation and optimal performance of the exhaust system. By entrusting the installation to professionals, owners can have peace of mind knowing that the exhaust system is expertly fitted and set up according to the highest standards.
• To integrate the included piping with the tips, it is necessary to cut the factory side mufflers. This step is essential for proper installation and alignment of the exhaust system. By carefully executing this process, the included piping can be seamlessly incorporated into the overall configuration, ensuring optimal performance and fitment.

About SOUL Performance

SOUL Performance Products was founded by a group of automotive enthusiasts with deep industry experience and a commitment to doing right by their customers. Their mission is to deliver outstanding performance parts at fair pricing, backed by quality service and one of the best warranties in the industry. SOUL develops high-performance exhaust systems and components that are engineered for exceptional sound and proven performance, with products ready to ship quickly worldwide. Guided by core values of honesty, transparency, and passion for cars, they build strong community connections and prioritize customer satisfaction at every step. Operating out of a dedicated facility in Willow Grove, Pennsylvania, SOUL combines hands-on research, engineering, and manufacturing expertise to create parts that meet and exceed the demands of serious enthusiasts.