GM tuning, BG Performance has over 25 years of powertrain calibration experience. BG Performance expertise is not limited by the geographic origin of vehicles, as such we are able to tune most makes of high end European performance and luxury/performance vehicles as well as domestic variants from Ford, Chrysler, and GM. BG Performance specializes in complete driveline tuning, meaning both transmission(TCU/TCM) and engine(PCM/ECU) code modifications. Regardless of if your looking for performance gains, better fuel economy, or just increased drive-ability we have the capabilities to satisfy your needs. For a more comprehensive explanation of our services and what we have to offer you please feel free to call one of our technicians at (800)590-9604. Here is a short list of some of our capabilities.