DEVELOPMENT AND TESTING: Porsche’s introduction of the 718 GT4 RS represented the ultimate evolution of the mid-engined Cayman platform, showcasing the brand’s relentless pursuit of performance. Yet, as with any production vehicle, engineering compromises and regulatory requirements left untapped potential within the exhaust system. Our objective was clear: enhance the character of the GT3-derived 4.0-liter flat-six while unlocking the performance gains hidden behind the factory restrictions.

Throughout development, the improvements in power delivery, throttle response, and sound quality were immediately apparent from behind the wheel. However, we wanted more than subjective impressions—we wanted measurable data.

To achieve this, we partnered with M-Engineering, who generously provided access to their state-of-the-art dyno facility in Pompano Beach, Florida. Together with respected automotive content creator Mickey Hernandez of Miami Miles, we conducted extensive back-to-back testing across virtually every GT4 RS exhaust configuration we offer.

DEVELOPMENT AND TESTING: Porsche’s introduction of the 718 GT4 RS represented the ultimate evolution of the mid-engined Cayman platform, showcasing the brand’s relentless pursuit of performance. Yet, as with any production vehicle, engineering compromises and regulatory requirements left untapped potential within the exhaust system. Our objective was clear: enhance the character of the GT3-derived 4.0-liter flat-six while unlocking the performance gains hidden behind the factory restrictions.

Throughout development, the improvements in power delivery, throttle response, and sound quality were immediately apparent from behind the wheel. However, we wanted more than subjective impressions—we wanted measurable data.

To achieve this, we partnered with M-Engineering, who generously provided access to their state-of-the-art dyno facility in Pompano Beach, Florida. Together with respected automotive content creator Mickey Hernandez of Miami Miles, we conducted extensive back-to-back testing across virtually every GT4 RS exhaust configuration we offer.

DEVELOPMENT: Our initial objective was simple: maximize the GT4 RS’s sound and performance potential through a cat-back exhaust system. The result was immediate success with our Over Axle Pipes and rear exhaust system, delivering a freer-flowing exhaust path and a dramatic increase in character. However, we also recognized the need for versatility. For drivers who want maximum excitement on demand without sacrificing comfort, we developed a Valved Exhaust System that delivers the best of both worlds.

Featuring a full 3-inch X-pipe regardless of valve position, the system allows the flat-six’s signature high-frequency soundtrack to shine when the valves are open, while providing a more subdued and refined driving experience when they are closed. When paired with either our Competition or Resonated Over Axle Pipes, sound levels increase further and performance gains are enhanced by eliminating the factory exhaust restriction.

DEVELOPMENT: Our initial objective was simple: maximize the GT4 RS’s sound and performance potential through a cat-back exhaust system. The result was immediate success with our Over Axle Pipes and rear exhaust system, delivering a freer-flowing exhaust path and a dramatic increase in character. However, we also recognized the need for versatility. For drivers who want maximum excitement on demand without sacrificing comfort, we developed a Valved Exhaust System that delivers the best of both worlds.

Featuring a full 3-inch X-pipe regardless of valve position, the system allows the flat-six’s signature high-frequency soundtrack to shine when the valves are open, while providing a more subdued and refined driving experience when they are closed. When paired with either our Competition or Resonated Over Axle Pipes, sound levels increase further and performance gains are enhanced by eliminating the factory exhaust restriction.

DEVELOPMENT: Our initial objective was simple: maximize the GT4 RS’s sound and performance potential through a cat-back exhaust system. The result was immediate success with our Over Axle Pipes and rear exhaust system, delivering a freer-flowing exhaust path and a dramatic increase in character. However, we also recognized the need for versatility. For drivers who want maximum excitement on demand without sacrificing comfort, we developed a Valved Exhaust System that delivers the best of both worlds.

Featuring a full 3-inch X-pipe regardless of valve position, the system allows the flat-six’s signature high-frequency soundtrack to shine when the valves are open, while providing a more subdued and refined driving experience when they are closed. When paired with either our Competition or Resonated Over Axle Pipes, sound levels increase further and performance gains are enhanced by eliminating the factory exhaust restriction.

DEVELOPMENT: Our initial objective was simple: maximize the GT4 RS’s sound and performance potential through a cat-back exhaust system. The result was immediate success with our Over Axle Pipes and rear exhaust system, delivering a freer-flowing exhaust path and a dramatic increase in character. However, we also recognized the need for versatility. For drivers who want maximum excitement on demand without sacrificing comfort, we developed a Valved Exhaust System that delivers the best of both worlds.

Featuring a full 3-inch X-pipe regardless of valve position, the system allows the flat-six’s signature high-frequency soundtrack to shine when the valves are open, while providing a more subdued and refined driving experience when they are closed. When paired with either our Competition or Resonated Over Axle Pipes, sound levels increase further and performance gains are enhanced by eliminating the factory exhaust restriction.