Does SOUL Performance make valved exhaust with carbon fiber tips for the 991.1?

Yes. The SOUL Performance 991.1 Valved Exhaust with Carbon Fiber Tips is built by SOUL Performance for the 991.1 Porsche 911 Carrera / GTS / S (non PSE).

Which models does this fit?

The Valved Exhaust System with Carbon Fiber Tips is engineered for the 991.1 Porsche 911 Carrera / GTS / S (non PSE). Fitment is specific to the chassis and model years listed in the Applications section above.

How does it change the sound?

SOUL engineers the Valved Exhaust System with Carbon Fiber Tips to sharpen tone and character while controlling unwanted resonance. The final sound depends on the rest of your setup.

Is an ECU tune required?

A tune is not required to fit the Valved Exhaust System with Carbon Fiber Tips. Many owners add a tune to maximize the gains.

How is it constructed?

SOUL builds the Valved Exhaust System with Carbon Fiber Tips from durable mandrel-bent stainless steel with precise, fixture-tested fitment.

Is professional installation recommended?

Yes. We recommend installing the Valved Exhaust System with Carbon Fiber Tips through a qualified technician to ensure correct fitment and a proper seal.

SOUL Performance Valved Exhaust System with Carbon Fiber Tips for 991.1 Porsche 911 Carrera / GTS / S (non PSE)

SOUL Performance has developed the 991.1 Carrera Valved Performance Exhaust System with the needs of professional enthusiasts in mind. When the valves are open, the exhaust gases can escape through unobstructed pathways, creating a captivating symphony from the flat six engine bound to elicit an exhilarating response. Whether in route to meet a client or embarking on a special dinner outing, keeping the valves closed allows for a refined and subdued tone, complemented by the effective performance of the factory side mufflers. If concerns arise regarding drone on a PDK-equipped car, this exhaust system is designed to alleviate such worries. Numerous owners of the 991.1 Carrera have expressed dissatisfaction with the sound and performance delivered by their sport exhaust system, finding it lacking in impact. In response, SOUL Performance set out to create an exhaust system that embodies a true Jekyll and Hyde personality, perfectly matching the Carrera’s persona. This car disguises its power behind an unassuming facade. The primary objective was to design a system that ensures a straight flow path for the exhaust gases when the valves are open. To achieve this, Soul Performance employed a larger tubing diameter, implemented smooth radius bends, and incorporated an X-pipe crossover with optimized flow characteristics. These enhancements significantly improve throttle response and overall performance compared to the restrictive factory sport exhaust, thanks to improved exhaust scavenging effects and increased volumetric efficiency.

Development & Testing

The 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 results and would necessitate revisions to accommodate clearances. Such revisions could jeopardize the high-flow design principles of their exhaust system. Furthermore, incorporating higher flowing aftermarket headers, such as their Long Tube Street Headers, into an aggressive rear system without appropriate sound attenuating features could lead to an excessively loud and potentially unpleasant driving experience.
It is crucial for customers who have combined an upgraded rear exhaust with headers to carefully consider this configuration and ensure that the exhaust system is engineered appropriately. To effectively mitigate unwanted frequencies, Helmholtz resonators (also referred to as anti-drone tubes) can be employed when they are engineered and utilized correctly. In the case of the 991.1 Carrera, an inherent RPM range between 3,000 and 3,500 exists, where the drone can become noticeable when higher flowing exhaust components are added. The objective 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.
The ultimate design they have developed has consistently delivered exceptional results for this particular application, meeting their stringent benchmarks for sound quality and drivability. While the mathematical calculations to create the Helmholtz resonators can be performed, how they are incorporated into the design significantly impacts the overall outcome.

Construction

Every exhaust is meticulously crafted in-house using mandrel bent, thick-walled T304L stainless steel with a diameter of.065 inches. Following the fabrication process, rigorous quality checks are conducted to ensure impeccable standards. To ensure optimal weld penetration and longevity, the exhausts undergo back purged TIG welding, guaranteeing the highest quality of welds.

Sound

The exhaust system produces an aggressive sound as one of its primary benefits. When the valves are open, there is a direct and unrestricted path from the 2.5″ piping to the tips, resulting in a bold and unimpeded flow. However, they have skillfully incorporated additional refinements into the system to match the premium experience that characterizes all things Porsche. The presence of an X-pipe further enhances sound smoothness when the valves are both open and closed. Overall, they are highly satisfied with the results and are confident that you will be too. When the valves are open, the system’s free-flowing nature creates a sound reminiscent of Cup cars, featuring increased volume and a pronounced crackling and burbling effect during deceleration. This system caters to those who desire heightened aggression at the touch of a button. When the valves are closed, the tone remains reasonable and refined, effectively minimizing drone while still allowing the distinctive sound of the flat six engine to be heard.

Bolt On & Go

Every exhaust undergoes thorough testing in a dedicated fixture to ensure impeccable fitment, and it is then carefully foam packed to ensure its pristine condition upon arrival. The package includes comprehensive installation instructions, facilitating a straightforward installation process that can be undertaken by most DIY enthusiasts. Moreover, new high-grade hardware is provided for your convenience. This system seamlessly integrates with the factory PSE controls, ensuring smooth operation. Additionally, 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, TIG-welded
Fixture-checked for precise, durable fit
Valves are controlled with included valve controller
Valved, straight-through design with 2.5″ piping and X-pipe for sharper response and power
Cup car, like aggression with valves open; refined, low-drone tone with valves closed
Tuned Helmholtz resonators targeting RPM rasp, ideal with upgraded headers
Direct bolt-on system
All Soul Performance products exhaust components are backed by a renowned lifetime warranty

Specifications

Material:T304L stainless steel
Tips Finish: Carbon fiber
Existing Exhaust: Standard exhaust / Non-PSE (no button) with vacuum valves (includes valve controller)

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

Installing the valve controller on non-PSE models is a more challenging process compared to PSE equipped vehicles. This is primarily due to the additional requirements of locating and tapping into a power source for wiring purposes, as well as the installation of vacuum lines. These tasks demand extra attention and care during the installation process.
The removal of the rear bumper is necessary
Professional installation is strongly recommended by Soul Performance
Does not fit vehicles with PSE
S models (without PSE button) use vacuum valves to control valve operation and it is recommended to install a valve controller kit for control over the valves

Frequently Asked Questions

Does SOUL Performance make valved exhaust with carbon fiber tips for the 991.1? Yes. The SOUL Performance 991.1 Valved Exhaust with Carbon Fiber Tips is built by SOUL Performance for the 991.1 Porsche 911 Carrera / GTS / S (non PSE).
Which models does this fit? The Valved Exhaust System with Carbon Fiber Tips is engineered for the 991.1 Porsche 911 Carrera / GTS / S (non PSE). Fitment is specific to the chassis and model years listed in the Applications section above.
How does it change the sound? SOUL engineers the Valved Exhaust System with Carbon Fiber Tips to sharpen tone and character while controlling unwanted resonance. The final sound depends on the rest of your setup.
Is an ECU tune required? A tune is not required to fit the Valved Exhaust System with Carbon Fiber Tips. Many owners add a tune to maximize the gains.
How is it constructed? SOUL builds the Valved Exhaust System with Carbon Fiber Tips from durable mandrel-bent stainless steel with precise, fixture-tested fitment.
Is professional installation recommended? Yes. We recommend installing the Valved Exhaust System with Carbon Fiber Tips through a qualified technician to ensure correct fitment and a proper seal.

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.

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SOUL Performance Valved Exhaust System with Carbon Fiber Tips for 991.1 Porsche 911 Carrera / GTS / S (non PSE) [POR.9911.VES.CF.VC]

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