National Tuning Currently Unavailable

Due to the national chip shortage, vehicles can only be tuned for St. Louis, MO residents. The only exception for customers outside St. Louis, MO are customers with a MPVI2+ device in there possession, or customers who are willing to drive to St. Louis, MO.

We expect to receive Underground Tuning Devices (RTD) November 25th! This will allow customers outside of St. Louis, MO to tune their vehicle from their phone and switch maps from their mobile device!

We apologize for the inconvenience.

Thank You,

Underground Tuning Team