Universal 3” Valved Muffler

Flex Priority Valved Performance Muffler

3” Inlet / Outlet | Vacuum Controlled | Wireless Remote Included

The Flex Priority Valved Performance Muffler is engineered for drivers who want full control over exhaust sound and flow without sacrificing reliability. Utilising a vacuum-actuated valve system instead of an electric motor, this muffler delivers consistent, dependable operation in high-heat exhaust environments where electronic valves are prone to failure.

Supplied as a complete system, including a vacuum control unit and wireless remote, this setup allows instant switching between quiet, refined driving and unrestricted performance at the press of a button.

Why Vacuum Control?

Vacuum control is widely used in OEM and high-performance applications due to its reliability and simplicity. Compared to electric motor valves, vacuum-actuated systems offer:

• Superior reliability in high-temperature environments

• No electric motors exposed to heat, moisture, or vibration

• Smooth, fast valve operation

• Proven long-term durability for street and performance use

This makes it ideal for daily-driven performance vehicles, custom exhaust builds, and applications where reliability matters just as much as sound.

Key Features

• 3” inlet and 3” outlet
  Designed to suit high-performance exhaust systems with minimal restriction.

• Vacuum-actuated exhaust valve
  Reliable and consistent operation under all driving conditions.

• Wireless remote control included
  Allows easy switching between valve open and closed modes on demand.

• Complete vacuum control system included
  Supplied with vacuum solenoid, control module, and necessary components for installation.

• Straight-through performance flow (valve open)
  Maximises exhaust flow, sound, and throttle response.

• Refined sound control (valve closed)
  Reduced exhaust noise for cruising, cold starts, and long-distance driving.

• High-quality stainless steel construction
  Built to withstand heat, vibration, and aggressive use.

Applications

• Performance street vehicles

• Custom exhaust fabrication

• Valved exhaust conversions

• Vehicles requiring selectable exhaust sound control

Notes

• Professional installation recommended

• Intended for custom exhaust systems

• Compliance with local noise and road regulations may vary by region