2014-2018 GMC Sierra 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) All 2007+ 6

All 2007+ 6

Gains vary depending on year

or chasing better performance

This time period is defined as 2 weeks after the completion of the process or 45 days from the date the equipment is shipped from our facility

Exceptions can be made for extenuating circumstances

2014-2018 GMC Sierra 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) All 2007+ 6Black Bear Performance offers our AutoCal custom tuning service for your 2014 2018 GMC Sierra 4. 3L, 5. 3L and 6. 2L. Gains vary widely by engine type and configuration. 4. 3L engines will typically see a 10 15hp 15 20ft lbs gain. 5. 3L engines will typically see a 15 25hp 15 20ft lbs gain (octane dependent) 6. 2L engines will typically see a 25 30hp 30 35ft lbs on 91+ octane. Combine that with improved shift patterns, towing capabilities, throttle