Armytrix Porsche 911 991 GT3 / GT3 RS (2013-2020) valvetronic exhaust system

Experience the raw emotion of your Porsche GT3 like never before. The ARMYTRIX Valvetronic Exhaust System, engineered for the 991 GT3 and GT3 RS (2013–2020), transforms your naturally aspirated flat-six into a thunderous masterpiece—while giving you full control over its sound signature. Whether you drive a 3.8L or 4.0L MA1 engine, this system delivers uncompromised flow, deep tone, and the freedom to command your exhaust volume via remote or app.

Built for purists. Designed for performance. Tuned for domination.

Fitment:

• Model: Porsche 911 GT3 / GT3 RS (991)

• Years: 2013–2020

• Engines:

  • 3.8L MA1.75 (MDG.GA) Flat-6

  • 4.0L MA1.76 (MDG.G) Flat-6

• Emissions Spec: Non-OPF models only

• Drive Orientation: Left-Hand Drive & Right-Hand Drive compatible

• Exhaust Control: Factory exhaust button remains functional (if equipped)

• Control Module: ARMYTRIX OBDII Valvetronic Module required

Performance Highlights:

• Main Pipe Diameter:

  • 2 x 2.5” for Stainless Steel Series

  • 2 x 2.4” for Titanium Series (ultra-lightweight, heat-resistant)

• Tips: Dual 4” Performance Exhaust Tips
  Sleek, aggressive look with a choice of finishes, including carbon, chrome, and burnt titanium

• Valvetronic Control via OBDII Port:
  Take command of your exhaust valves with:

  • Wireless Remote

  • ARMYTRIX Smartphone App (iOS / Android)

  • Auto Mode – Valves adapt to throttle input and RPM

  • Race Mode – Valves fully open for maximum volume and aggression

  • Quiet Mode – Valves closed for more subdued cruising

• Exclusive CEL Suppression Tech:
  Proprietary fault-code clearing system significantly reduces chances of Check Engine Lights, even with cat modifications

• Plug-n-Play OBDII Valve Control Module:
  No cabin cutting or wiring hassle—reduces install time by up to 30% over traditional setups

What’s Included:

• ARMYTRIX Valvetronic Exhaust System (Stainless Steel or Titanium)

• Dual 4” Signature Exhaust Tips

• Wireless Remote Control Kit

• OBDII Plug-and-Play Valve Control Module

• Mounting Hardware

• Digital Installation Guide

System Compatibility Notes:

• For 991 GT3 / GT3 RS (2013–2020) only

• Compatible with 3.8L and 4.0L MA1 engines

• Designed for Non-OPF models only

• LHD and RHD vehicles supported

• OBDII Control Module required for valve operation

• Factory exhaust button function is preserved (if equipped)

• Titanium series offers lighter weight and improved thermal resistance

• Professional installation is recommended

Race-Bred Acoustics. Intelligent Control. Track-Ready Engineering.

Your GT3 wasn’t built to whisper—it was built to roar. The ARMYTRIX Valvetronic Exhaust System unleashes the iconic howl of the Porsche flat-six, letting you switch between street stealth and circuit scream in seconds. With a choice of Stainless Steel or Titanium, this system pairs aggressive tone with ultra-premium materials for maximum performance and durability.