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$5,000.00 USD

The Valve Master GT3/RS exhaust system is an artisan crafted piece of art. Though the GT3/RS is a racecar out of the box, the OEM exhaust note from factory is rather quiet. To fix this, we have created the ideal system to let your naturally aspirated flat-6 sing through all 9000 RPM’s. Featuring electric valves that block drone and allow for instant control. This lightweight-hand crafted system constructed of pi-cut welds checks all the boxes for performance, reliability and aesthetics. 


  • Full Catback System
  • Center Merge X-Pipe for flow equalization 
  • 2.5" long tube piping creates high pitched F1 tone with crisp shifts
  • 2 Tips
  • Remote and Receiver
  • All Hardware and Clamps
  • Max Power Gains without upgraded headers +20HP +14TQ
  • Max Power Gains with upgraded headers +38HP +30TQ
  • Weight Savings:
    • Stainless Steel T304 - 10LBS lighter than OEM
    • Titanium - 25LBS lighter than OEM
  • Sport Catted Headers include 200CPSI catalytic convertor 
  • Valves closed offers a comfortable, no drone and tamed experience
  • Valves open turns heads and offers an F1 experience like no other



  • 2015-2016 Porsche 911 991 GT3 
  • 2017-2021 Porsche 911 991.2 GT3 
  • 2015-2017 Porsche 911 991 GT3 RS 
  • 2018-2021 Porsche 911 991.2 GT3 RS 


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