Traditional Tune Service Tune Installation Option:Blemished PCM (>5% paint missing) [+$75] - 1996-2000 4.3L 5.0L 5.7L 7.4L The tune will provide horsepower

The tune will provide horsepower and torque increases

20-25hp gains are common with 30-35ft-lbs of torque

If you would like Black Bear to provide GM tuning and/or credits

All 2007+ 6

We start off by having you collect your OEM tune file(s) as well as a scan of the vehicle's operating conditions while driving

Traditional Tune Service Tune Installation Option:Blemished PCM (>5% paint missing) [+$75] - 1996-2000 4.3L 5.0L 5.7L 7.4L The tune will provide horsepowerOur traditional tune is our custom mail order tune that does not involve data logging. The tune will provide horsepower and torque increases, improved throttle response and shifting, and overall driveability. Contact us for an estimated range of gains for your vehicle type. Contact us for our mail in form if you would like to send in your control module(s) to be tuned. Supported Vehicles: Most 1996 to 2013 4 speed GMC Chevrolet gas vehicles with 4.