CONTACT US

Thank you for choosing BigBearTuning for your tuning needs.
We're here to provide top-notch remote tuning services for your heavy-duty equipment.
Please follow the steps below to ensure a smooth ordering process.


Supported Vehicles:
• Cummins Engines: All models and applications.
• Mack Trucks (USA, 2014+): OBD2 models
• Volvo Trucks (USA, 2014+): OBD2 models
• Volvo CE with DEF


Remote Tuning Requirements:
Diagnostic Adapter
(Nexiq USB Link, Cummins Inline, DPA5, Noregon, VOCOM...)
Windows laptop
Internet Connection


How to Contact Us:
Reach out to us through any of the following channels:
• WhatsApp
• bigbeartuning@gmail.com
• Telegram

When contacting us, please include the following information:
• Engine Make and Model: e.g., "MACK MP8"
• Year of Manufacture:: e.g., "2016"
• CPL and Engine Serial Number: Only for Cummins*
* CPL and Engine Serial Number are located on engine tag(on valve cover)


Fast & Reliable
Our process is designed for speed and reliability. In most cases, a full ECM tuning session takes less than 1 hour — minimizing downtime and getting you back on the road quickly.


Response Time:
Our technicians will respond as promptly as possible.
Please note that response times may vary depending on current workload.

Please keep in mind that we only work on OBD2 models in case of Volvo/Mack trucks and Volvo CE.
In case of Cummins, all engines are supported.