Patented Technology that let you Control your Exhaust Sound

Street Mode

Setting your Varex™ muffler in ‘Street mode’ enables lower sound levels and maximum discretion, as exhaust gases are directed through a chambered path as would a ‘stock’ muffler

Race Mode

For greater power output and sound level, exhaust gases are directed through the opening path and produce maximum power with a robust sound level (or the ‘sports car’ note) and near-zero resistance.

*Graphics are for illustration purposes only, actual product may vary

"In Between"

As the angle of the valve is infinitely adjustable, it can be adjusted to stop at any point between sports mode and silence mode. This gives you further freedom to set the optimal sound level according to your desired preference.

*Graphics are for illustration purposes only, actual product may vary

Varex™ Motor

VAREX™ Motor and gear sets are located on the top of the muffler, they work as an integrated unit to drive the butterfly valve open and close.The dimensions of the motor and gear box are typically manufactured to 4.5cm(H) x 10cm(W) x 20cm(L)

* Dimensions may vary depending on model

Varex™ Control Kit

VK01

• Water resistant plug (connected to Varex™ Motor)
• Power plug
• Remote Control Keypad
• Control module

VK02

• Dual control kit. It shares the same components as VK01 except having two connecting Plugs for dual VAREX™ mufflers.

VKSB01

• SmartBox Bluetooth Exhaust Controller

• Programmable via iOS and Android App; 
• Precise Manual Control (down to 1% Valve postition accuracy);
• Automatically Controlled by RPM,Throttle Position and Vehicle Speed;
• "One-touch exhaust drone delete" Function;
• Automatically Triggered by Geo location;
• More information about SmartBox, click here.

Varex™ Kit Contents

Complete Varex™ Muffler Kit includes:

• Varex™ harness with water resistant connector & power plug
• Control Module
• Remote Control Keypad
• Varex™ Muffler of your choice
• Muffler Band