What is included in the SOUL Performance Exhaust System Package for 992 GT3?

The Exhaust System Package for 992 GT3, GT3 RS, and 991.2 Speedster includes long-tube headers, SOUL's own 300-cell Sport Cats, and a valved rear section with 4-inch Satin Black Slash Cut tips, all built in-house at SOUL's Willow Grove, PA facility and backed by SOUL's Lifetime Warranty for street and track use.

Which models does this exhaust fit?

This system is engineered specifically for the 992.1 Porsche 911 GT3 and GT3 RS, model years 2021 through 2024, along with the 991.2 Porsche 911 Speedster. Fitment is chassis-specific, so double-check the exact model year and trim against the Applications section above before ordering to confirm a direct bolt-on fit.

How does this system change the exhaust sound?

With the valves closed, an internal x-chamber muffler keeps cabin presence comfortable under 4,000rpm and largely drone-free. Opening the valves routes exhaust through a large-diameter 3-inch x-pipe for a higher-pitched, smoother GT3 note that builds into a wail as revs climb, with volume controlled entirely by throttle input.

Is an ECU tune required to run this exhaust?

A tune is not required for the system to function correctly, and the valve actuators are designed to operate exactly as intended straight out of the box. That said, SOUL recommends a custom ECU tune for owners who want full valve override or who are chasing additional gains beyond what the hardware alone provides.

Are the Sport Cats interchangeable with a free-flow section?

Yes. The Sport Cats and the free-flow sections are interchangeable, so owners can choose 300-cell catalysts for reduced CEL likelihood and everyday street driving, or swap to the free-flow section to maximize flow and performance for dedicated track use. Both options bolt into the same header-and-rear system without any other changes.

Is professional installation recommended for this exhaust system?

Yes. Professional installation is recommended to ensure the headers, catalysts, and rear section all seat correctly and seal properly against the factory mating surfaces. SOUL fixture-tests and foam-packs every system before it ships, but a qualified technician should still handle the actual bolt-on install and torque specifications.

SOUL Performance Valved Exhaust System Package for 992 GT3 / GT3 RS and 991.2 Speedster

SOUL Performance’s Exhaust System Package for 992 GT3, GT3 RS, and 991.2 Speedster is built to give the GT3 the voice its engineering deserves: sharper, higher pitched, and more emotive without crossing into constant drone. A full header-and-rear system replaces the restrictive factory setup with SOUL’s own 300-cell catalysts, preserving street legality and CEL resistance (when used as intended) without giving up real flow gains. Every system is built in-house at SOUL’s Willow Grove, PA facility and finished with 4-inch Satin Black Slash Cut tips for a purposeful, track-ready look. Backed by SOUL’s industry-leading Lifetime Warranty for both street and track use, this is the complete exhaust upgrade for GT3 owners who want more pitch, more presence, and more performance in one cohesive package.

Construction

Every system is meticulously assembled in the USA using mandrel-bent T304L stainless steel with a thick .065″ wall. SOUL Performance Products incorporates their billet 304L stainless steel head flanges and merge collector, which are precisely cut using a state-of-the-art 5-axis CNC machine to optimize exhaust flow and enhance overall strength. To ensure exceptional weld quality and longevity, the TIG welding process is back purged, utilizing ARCAL™ Prime argon gas. This step is crucial for durability, particularly in demanding track conditions. The headers and system are fabricated with the aid of robust thick gauge aluminum fixtures, serving as effective heat sinks during the welding process. These fixtures not only prevent warping of the products but also safeguard against warping of the fixtures themselves, ensuring impeccable fitment.

Headers

The key to enhancing performance lies in replacing the factory headers, which are known for their weight and restrictions. By opting for a complete system replacement, SOUL Performance Products can eliminate the limitations imposed by the factory catalytic assemblies and the “particulate filters,” as well as the large 7-⅝ connection point to the factory rear muffler assembly. By optimizing the flange design of their previous generation GT3 Competition Headers, SOUL Performance Products successfully eliminates the need for costly OEM clamps and donut gaskets associated with the factory 991 gen connection point. Instead, they employ a more efficient v-band connection point, resulting in improved efficiency and performance.
Even though the GT3 is a remarkable engineering marvel created by Porsche, the exhaust manifolds it comes with are constrained in terms of primary tubing length, runner diameter, and merge collection efficiency. These limitations stem from factors such as dense catalytic converters, mass production considerations, and compromises made for emissions and sound restrictions. To overcome these limitations, SOUL Performance Products has focused on refining the interface between the flange and primary tubes, incorporating smooth radius large diameter bends, and implementing performance-oriented collectors with merge spikes. This meticulous approach has resulted in increased flow, improved response, enhanced performance, and a more aggressive exhaust note to match. Rather than opting for a slip-on merge collector, they have taken the path of designing a high-flow collector using CAD technology and CNC machining to eliminate any chances of exhaust leaks. The bespoke billet collector allows for optimized runner length and reduces the need for multiple welds, ensuring durability. Furthermore, their billet CNC head flanges enable a more efficient transition from the exhaust ports into the runners and provide added strength in a high-stress area, minimizing the risk of cracking during repeated, intense use on track days.

SOUL Sport Cats

This Exhaust System Package for 992 GT3 owners includes SOUL’s own 300-cell Sport Cats, engineered with a precious-metal coating and a triple-metal-matrix core for exceptional durability under sustained high-horsepower use. The design supports strong flow characteristics while significantly reducing the likelihood of a check engine light (when used as intended), striking the right balance between performance and everyday drivability.

Rear Exhaust Section

With limited space beneath the car, SOUL built a rear section that keeps the catalysts aligned directly behind the headers to preserve exhaust velocity, using an internal muffler to control drone below 3,000rpm without adding unnecessary weight or complexity. Valves open route exhaust through the 3-inch piping and x-pipe for a higher-pitched, freer-flowing sound; valves closed send it through a straight-through, perforated muffler with a built-in x-pipe that smooths the tone and keeps drone in check at low rpm. The Sport Cats and free-flow sections are interchangeable, so owners can choose street-friendly CEL resistance or maximum track flow, and a 991 GT3-style tip plate makes swapping tip styles simple.

Sound

Valves closed keep the cabin comfortable and low-drone under 4,000rpm, with noticeably more presence and a fuller tone than the stock exhaust, without becoming intrusive. Valves gradually open from 4,000 to 5,000rpm, unleashing an aggressive, higher-pitched wail at wide-open throttle; volume stays entirely under driver control rather than being loud all the time like a muffler-less setup. The merged x-pipe design and muffler tuning sharpen the tone compared to a system without a muffler, giving the GT3 a mechanical, motorsport-inspired voice that matches its performance.

Valve Control

Factory-style electronic actuators keep the valves closed until 4,000rpm, then progressively open through 5,000rpm; PSE allows manual override for full-open operation on demand. Because these actuators hold tension on the valve bodies rather than relying on vacuum and spring pressure like older Porsche valve designs, they can’t simply be unplugged to force the valves open. The included hardware is engineered specifically for this platform to prevent check engine lights and ensure correct valve operation; full valve override is available through ECU tuning for owners who want it.

Features

Full valved header-back system with long-tube headers, Sport Cats, and rear x-pipe
SOUL’s own 300-cell Sport Cats with precious-metal coating for power with CEL resistance (when used as intended)
Valves-closed path through compact muffler / x-chamber for low-drone, sub-4,000rpm comfort
Valves-open 3″ x-pipe path for sharper, higher-pitched GT3 wail under load
4″ Satin Black Slash Cut Single Wall tips with modular tip plate for easy tip swaps
Thick .065″ T304L stainless, CNC billet flanges, v-band joins, and Lifetime Warranty

Applications

Porsche 911 GT3: 992.1 | 2021-2024 | 4.0L F6
Porsche 911 GT3 RS: 992.1 | 2022-2024 | 4.0L F6
Porsche 911 Speedster: 991.2 | 2019 | 4.0L F6

Notes

It is recommended to have a custom ECU tune

Frequently Asked Questions

What is included in the SOUL Performance Exhaust System Package for 992 GT3? The Exhaust System Package for 992 GT3, GT3 RS, and 991.2 Speedster includes long-tube headers, SOUL’s own 300-cell Sport Cats, and a valved rear section with 4-inch Satin Black Slash Cut tips, all built in-house at SOUL’s Willow Grove, PA facility and backed by SOUL’s Lifetime Warranty for street and track use.
Which models does this exhaust fit? This system is engineered specifically for the 992.1 Porsche 911 GT3 and GT3 RS, model years 2021 through 2024, along with the 991.2 Porsche 911 Speedster. Fitment is chassis-specific, so double-check the exact model year and trim against the Applications section above before ordering to confirm a direct bolt-on fit.
How does this system change the exhaust sound? With the valves closed, an internal x-chamber muffler keeps cabin presence comfortable under 4,000rpm and largely drone-free. Opening the valves routes exhaust through a large-diameter 3-inch x-pipe for a higher-pitched, smoother GT3 note that builds into a wail as revs climb, with volume controlled entirely by throttle input.
Is an ECU tune required to run this exhaust? A tune is not required for the system to function correctly, and the valve actuators are designed to operate exactly as intended straight out of the box. That said, SOUL recommends a custom ECU tune for owners who want full valve override or who are chasing additional gains beyond what the hardware alone provides.
Are the Sport Cats interchangeable with a free-flow section? Yes. The Sport Cats and the free-flow sections are interchangeable, so owners can choose 300-cell catalysts for reduced CEL likelihood and everyday street driving, or swap to the free-flow section to maximize flow and performance for dedicated track use. Both options bolt into the same header-and-rear system without any other changes.
Is professional installation recommended for this exhaust system? Yes. Professional installation is recommended to ensure the headers, catalysts, and rear section all seat correctly and seal properly against the factory mating surfaces. SOUL fixture-tests and foam-packs every system before it ships, but a qualified technician should still handle the actual bolt-on install and torque specifications.

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 Package for 992 GT3 / GT3 RS and 991.2 Speedster [POR.992GT3.VPKGS.SLT4B]

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