Mach 5 Performance Valvetronic Cat-Back Exhaust System (991 Turbo)


Designed to fit

  • 2013 - 2016 Porsche 911 Turbo / Turbo S (991.1)
  • 2017 - 2019 Porsche 911 Turbo / Turbo S (991.2)

Product Details

The Mach 5 Performance Valvetronic exhaust delivers both power and dynamic valve control to the driver's seat. The full system includes the remote capability to command 3 different modes: on, off, and auto. In on mode, the valves are fully open for maximum flow and power, releasing the pure sporty sound of the engine. In off mode, the valves are closed and volume is reduced for a comfortable cruise. The auto mode enables the system to detect the engine RPM and fuel pedal signal to automatically adjust the valve movements for a dynamic driving experience. Each part of the exhaust system is individually designed to perfectly fit the PORSCHE 911 Turbo. Only the best materials were chosen for the muffler internals to create a unique and breathtaking sound to break free from the ordinary.


  • 100% No Drone guarantee in either close or open valve mode!
  • Vacuum controlled valve that can be in either QUIET or RACE mode
  • Made from high grade 304 stainless steel
  • 100% hand crafted
  • Computer aided design, ensures 100% fitment
  • Slip joint design allows fine tuning adjustment 


About MACH 5 Performance


Founded in 2000 by a group of automobile car enthusiast, Mach5 Performance started out as a small boutique tuning shop dedicated to custom fabrication of performance parts for high end German vehicles.  From a simple beginning, MACH 5 has now grown into an industry leader in performance aftermarket enhancements.

Upon inception, MACH5 immediately put its reputation to the test.  Proven by numerous satisfied performance enthusiasts on street and race track, words quickly began to spread among car tuning circle about our dedication to customer satisfaction, innovation, quality, Design, and reliability.

MACH5 has continuously expanded and improved their facility in the past 15 years, and their facility currently houses some of the highest quality tool and computer aided design software in the industry.  They also have direct support from manufactures and local dealerships, which is part of the reason they can offer 100% fitment guarantee to our customers.

Currently, their portfolio offers exhaust system and carbon fiber interior/exterior components for US customers.