SOUL Performance Valved Exhaust System with Black Chrome Tips for 991.1 Porsche 911 Carrera / GTS / S (with PSE)

The 991.1 Carrera Valved Performance Exhaust System by SOUL Performance has been meticulously crafted with passionate car enthusiasts in mind, catering to individuals who yearn for an exceptionally thrilling driving experience. When the valves are open, the exhaust gases effortlessly find their way through unobstructed channels, creating a breathtaking symphony produced by the flat-six engine. The resulting tone is so captivating that it will send shivers down one’s spine. Whether in route to meet a client or embarking on a special dinner outing, simply closing the valves provides a refined and understated sound courtesy of the remarkably capable factory side mufflers. Rest assured, for those who possess a PDK-equipped car and are concerned about excessive noise, this exhaust system will not disappoint by generating any intrusive drone.Numerous owners of the 991.1 Carrera have expressed disappointment with the sound and performance delivered by their sport exhaust system, finding it lacking the desired impact. In response, SOUL Performance embarked on a mission to create an exhaust system that perfectly aligns with the Carrera’s persona, embodying a true Jekyll and Hyde character, a seemingly ordinary car concealing hidden power. The primary objective was to design a system that enables exhaust gases to flow in a straight path when the valves are open. This entailed employing a larger tubing diameter, incorporating smooth bends with gentle curves, and integrating an X-pipe crossover to optimize exhaust scavenging effects and enhance volumetric efficiency. Consequently, the exhaust system offered by Soul Performance significantly improves throttle response and overall performance compared to the restrictive factory sport exhaust.

Development & Testing

• Their objective was to enhance the comfort of everyday driving without compromising the race-inspired tone and straight-through exhaust design. They determined that opting for a larger resonator would not achieve the desired outcome while necessitating revisions to accommodate clearances. Such revisions could potentially jeopardize the exhaust system high-flow design principles. Additionally, they recognized that integrating higher flowing aftermarket headers, such as their Long Tube Street Headers, into an already aggressive rear system without appropriate sound attenuating features could lead to an excessively loud and potentially unpleasant driving experience.
• For customers who have combined their rear exhaust with upgraded headers, it becomes crucial to take this configuration into consideration and engineer the exhaust system accordingly. One effective method to mitigate unwanted frequencies, when implemented and engineered correctly, is the utilization of Helmholtz resonators, also known as anti-drone tubes. In the case of the 991.1 Carrera a specific RPM  exists range, typically between 3,000 and 3,500rpm, where the drone can manifest itself when higher flowing exhaust components are introduced. The aim was to eliminate these undesirable frequencies within that range while also ensuring a smooth transition from closed to open valves for factory PSE-equipped cars.
• After rigorous development, their ultimate design has consistently delivered exceptional outcomes for this particular application, meeting their exacting standards for sound quality and drivability. While the mathematical calculations for the Helmholtz resonators can be performed, the implementation and integration of these resonators into the overall design truly makes a significant difference.

Construction

• Every exhaust system is meticulously constructed in-house using mandrel bent, thick wall T304L stainless steel, with a thickness of .065″. These materials undergo rigorous quality checks to ensure their excellence. To guarantee optimal weld penetration and long-lasting performance, the exhausts are meticulously welded using TIG welding techniques with back purging.

Sound

• The exhaust system produces an aggressive sound, and one of its primary advantages is the unrestricted flow from the 2.5″ piping to the tips when the valves are open. However, they have skillfully incorporated additional refinement into the system to align with the premium experience that characterizes Porsche vehicles. The X-pipe, whether the valves are open or closed, contributes to further smoothing of the sound. Overall, they are highly pleased with the results and confident that you will be too. When the valves are open, the free-flowing nature of the system imparts a sound reminiscent of a Cup car, featuring amplified volume and a delightful array of crackles and burbles upon deceleration. This system is designed for those seeking heightened aggression at the touch of a button. Conversely, when the valves are closed, the tone remains pleasantly restrained and refined, effectively minimizing drone while still allowing the distinctive flat six sound to be discernible.

Bolt On & Go

• Every exhaust system undergoes testing in a dedicated fixture to ensure precise fitment, and it is then carefully packaged with foam to ensure its flawless condition upon arrival. Comprehensive installation instructions are included in the package, allowing for a straightforward installation process that can be undertaken by most do-it-yourself (DIY) enthusiasts. Additionally, new high-grade hardware is provided for your convenience. This system seamlessly integrates with the factory PSE controls, but it can also be utilized on S / GTS cars that are not equipped with PSE by incorporating a SOUL valve controller kit during installation.

Features

• Thick-wall .065″ T304L stainless construction
• Fully TIG-welded with back purging for strength and durability
• Integrates with factory PSE controls
• Straight-through, low-restriction design for sharper throttle response and added performance
• Aggressive, Cup car-like tone
• Helmholtz resonators tuned to reduce drone
• Fixture-checked for precise fitment
• High-grade hardware and detailed DIY-friendly instructions
• Direct bolt on installation
• All Soul Performance products exhaust components are backed by a renowned lifetime warranty

Specifications

• Material: T304L stainless steel
• Tips Finish: Black Chrome
• Existing Exhaust: Porsche Sport Exhaust (reuse PSE controls)

Applications

• Porsche 911 Carrera: 991.1 (2011-2016)
  [4.0L F6]
• Porsche 911 Carrera GTS: 991.1 (2014-2016)
  [4.0L F6]
  
• Porsche 911 Carrera S: 991.1 (2011-2016)
  [4.0L F6]
  

Notes

• Rear bumper must be removed
• Soul Performance highly recommends professional installation
• Only fits vehicles with PSE

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.