Does SOUL Performance make valved side-muffler bypass pipes for the 997?

Yes. The SOUL Performance 997 Valved Side-Muffler Bypass Pipes is built by SOUL Performance for the 997 Porsche 911 GT3 / GT3 RS.

Which models does this fit?

The Valved Side-Muffler Bypass Pipes is engineered for the 997 Porsche 911 GT3 / GT3 RS. 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 Side-Muffler Bypass Pipes 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 Side-Muffler Bypass Pipes. Many owners add a tune to maximize the gains.

How is it constructed?

SOUL builds the Valved Side-Muffler Bypass Pipes from durable mandrel-bent stainless steel with precise, fixture-tested fitment.

Is professional installation recommended?

Yes. We recommend installing the Valved Side-Muffler Bypass Pipes through a qualified technician to ensure correct fitment and a proper seal.

Description

Additional Info

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BP PRICING DIFFERENCE

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Description

SOUL Performance Valved Side-Muffler Bypass Pipes for 997 Porsche 911 GT3 / GT3 RS

SOUL Performance Products’ Valved Side Muffler Bypass Pipes for the Porsche 997 and 997.2 GT3 / GT3 RS shed over 35 lb of rear-end weight and significantly reduce heat soak by replacing the bulky factory side mufflers with free-flowing 3″ T304L stainless piping, all while retaining full valve functionality. Large-diameter mandrel-bent primaries and an enlarged crossover opening improve exhaust flow and help equalize pressure in the center muffler, promoting longevity under hard use. High-quality valves and flex bellows are engineered to operate like OEM, allowing smooth transitions between closed and open modes, mildly louder and more present with valves shut, and a refined, exotic GT3 scream when opened. Each system is designed and built in-house at SOUL’s Willow Grove, PA facility from 3″.065″-wall T304L stainless, fixture-tested for precise, direct bolt-on fitment, foam packed for safe delivery, and backed by SOUL’s Lifetime Warranty for both street and track use, making it an ideal solution for drivers who want real weight savings, better thermal management, and a more exciting soundtrack without sacrificing factory-like control.

Development & Testing

By eliminating the side mufflers, significant weight reduction is achieved, aiding in efficient heat management within the engine bay and maintaining lower temperatures for the rear tires. The opening leading to the secondary pipe is enlarged to ensure equalized pressure in the center muffler, contributing to its longevity. Flex bellows allow for convenient installation and enhance durability, particularly in intense racing scenarios, similar to the original equipment manufacturer components. Additionally, large 3″ diameter primary piping enhances flow, while the valves function with the same high quality as the factory ones.

Construction

Maximum durability is ensured in each set through the utilization of mandrel-bent T304L stainless steel tubing, with a wall thickness of 0.065 inches, and the inclusion of high-quality flex bellows.

Sound

The sound exhibits a smoother transition between open and closed states than a center muffler bypass. When the valves are closed, the tone experiences a moderate increase while maintaining a comfortable sound level when the factory center muffler is installed. Opening the valves uncovers a sophisticated, exotic pitch that perfectly complements the powerful GT3 engine high-performance nature.

Bolt On & Go

After undergoing meticulous testing in a fixture to guarantee an impeccable fit, each exhaust system is carefully packaged in foam to ensure its pristine condition upon arrival. It arrives ready for installation without the need for any cutting or modification.

Features

Lightweight 3″.065″ T304L stainless valved side bypass pipes
Retains full OEM-style valve functionality for quiet and loud modes
Over 35 lb rear-end weight reduction and improved heat management
Enlarged crossover and 3″ primaries for smoother, higher exhaust flow
Direct bolt-on, fixture-tested fitment built in-house by SOUL
Backed by SOUL Performance Products’ Lifetime Warranty

Applications

Porsche 911 GT3: 997.1, 997.2 | 2006-2012 | 3.6L F6
Porsche 911 GT3 RS: 997.1, 997.2 | 2007-2012 | 3.6L F6

Notes

Upon special request, O2 bungs can be added to accommodate aftermarket headers that relocate the bungs to the SMB. Throughout the entire process, the dedicated Bulletproof Team will act as your concierge, guiding you to achieve the ideal setup tailored specifically for your GT3 / GT3 RS.

Frequently Asked Questions

Does SOUL Performance make valved side-muffler bypass pipes for the 997? Yes. The SOUL Performance 997 Valved Side-Muffler Bypass Pipes is built by SOUL Performance for the 997 Porsche 911 GT3 / GT3 RS.
Which models does this fit? The Valved Side-Muffler Bypass Pipes is engineered for the 997 Porsche 911 GT3 / GT3 RS. 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 Side-Muffler Bypass Pipes 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 Side-Muffler Bypass Pipes. Many owners add a tune to maximize the gains.
How is it constructed? SOUL builds the Valved Side-Muffler Bypass Pipes from durable mandrel-bent stainless steel with precise, fixture-tested fitment.
Is professional installation recommended? Yes. We recommend installing the Valved Side-Muffler Bypass Pipes 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.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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