SOUL Performance Center Muffler Bypass Exhaust System with Straight Satin Black Tips for 991 Porsche 911 GT3 / GT3 RS / R

SOUL Performance Products’ Center Muffler Bypass Exhaust for the Porsche 991.1 GT3 transforms the car’s character by replacing the heavy factory center muffler with a lightweight, free-flowing T304L stainless section that dramatically elevates the signature flat-six wail without sacrificing day-to-day comfort. Retaining the OEM side mufflers and factory valves allows the driver to continue using the sport button to modulate volume, delivering a richer, more emotional tone in normal driving and a true track-inspired roar when paired with upgraded headers. Mandrel-bent tubing, high-quality clamps, and precise bracketry ensure a direct bolt-on installation that sheds roughly 11 lb from the rear of the car while maintaining reliability and avoiding check-engine lights. The included 4″ Straight Cut Single Wall tips in Satin Black visually fill out the rear bumper with a purposeful motorsport look, matching the sharper, more aggressive soundtrack. Backed by SOUL’s renowned Lifetime Warranty for both street and track use, this center bypass is an ideal solution for 991 GT3 owners who want more theater, more sound, and less weight without compromising usability.

Development & Testing

• SOUL Performance Products was tasked with providing an exhaust system solution that enhances volume and flow without requiring a significant financial investment. By retaining the stock side mufflers and valves, this system allows drivers to control the sound using the factory sport button, providing a customizable driving experience. Additionally, this Porsche exhaust system is highly compatible with upgraded headers, delivering exceptional power and sound for those seeking the ultimate track setup. The system is backed by a Lifetime Warranty, specifically designed to cater to track use and instill confidence in its durability. Furthermore, no check engine lights were encountered during the extensive development and long-term road testing processes, ensuring a seamless and trouble-free experience for Porsche enthusiasts.

Construction

• Every system is meticulously crafted using mandrel-bent T304L stainless steel tubing, ensuring optimal performance and durability. The package includes Mikalor Supra Heavy-Duty W4 Clamps, specifically designed for securely mounting the system to the vehicle. These clamps are equipped with projection welding spots, a swinging bridge, high-strength stainless steel bolts, and an exclusive design of the captive nut and trunnion, delivering superior clamping forces and long-lasting performance. Additionally, AccuSeal clamps are provided to establish a reliable connection between the exhaust and the side mufflers. These high-quality clamps ensure a secure and leak-free joint, further enhancing the overall performance and integrity of the system. With meticulous attention to detail and the inclusion of premium components, each system is designed to deliver exceptional results and exceed expectations.

Bolt On & Go

• Every exhaust undergoes meticulous testing in a dedicated fixture to guarantee flawless fitment and optimal performance. To ensure their safe arrival, each exhaust is carefully foam packed for protection during transit, ensuring they reach customers in impeccable condition. The installation process for the Center Muffler Bypass Exhaust is straightforward and user-friendly, making it accessible to most DIY enthusiasts. With detailed instructions included, customers can confidently undertake the installation themselves, enjoying the benefits of the upgraded exhaust system without the need for professional assistance.

Features

• Replaces heavy factory center muffler with lightweight, free-flowing T304L stainless section
• Dramatically enhances the signature 991.1 GT3 flat-six sound without sacrificing daily comfort
• Retains OEM side mufflers and factory valves for sport-button volume control
• Delivers richer, more emotional tone in normal driving and a track-inspired roar with upgraded headers
• Mandrel-bent tubing, precise bracketry, and high-quality clamps for direct bolt-on installation
• Includes 4″ Straight Cut Single Wall tips in Satin Black for a purposeful motorsport appearance
• Engineered to avoid check-engine lights during normal use and development testing
• Backed by SOUL Performance Products’ Lifetime Warranty

Applications

• Porsche 911 GT3: 991.1, 991.2 (2013-2019)
  [3.8L F6] [4.0L F6]
  
• Porsche 911 GT3 RS: 991.1, 991.2 (2015-2019)
  [4.0L F6]
  
• Porsche 911 R: 991.1 (2016)
  [4.0L F6]
  

Notes

• Please note that the main image showcases the signature satin tips

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.