When a high-flow catalytic converter or test pipe is used on a late model car it's guaranteed that CEL (Check Engine Light) will come on.

This CEL is caused by a fault code that indicates an inefficient catalytic converter.

Our CEL eliminator is CNC machined in-house from high quality cold roll steel for a long-lasting effective performance.

Install this spacer on your REAR (downstream, post-cat) oxygen sensor to effectively remove the code for catalyst efficiency.

This is recommended for vehicles that do NOT have "stage 2" software.

This product is not intended to and will not provide emissions compliance.

FOR OFF-ROAD USE ONLY!

Emissions laws vary by state and by province. Check local and federal laws before modifying your exhaust system.

Emissions compliance is the sole responsibility of the vehicles owner. This is a universal product that works on variety of vehicles, however it is not effective on all cars.

WHAT IS THE SMART BOX?

 Varex Smart Box is a control device with patent pending technology that let the user to manually and automatically adjust the exhaust sound level of the Varex exhaust.

The users can operate and make change to the settings of the Smart Box via an elegantly designed Smartphone App.

The connections between the Smart Boxes and the smart phones are via the latest Bluetooth® technology, which provides an exceptionally reliable and smooth user experience.

Smart Box provides the following functions:

• MANUAL MODE:

  • Precise manual adjustment of VAREX exhaust valve positions; 
    

  • Custom pre-set of VAREX exhaust valve positions;    
    

                

• MATRIX MODE:(ONLY WORK WITH VEHICLES EQUIPED WITH OBDII)

  • Automatic control of VAREX exhaust valve positions based on real time information of RPM,Throttle, and Speed.