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Black 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 response and even fuel economy in many cases and you'll have what feels like a whole new vehicle!
Additional service offerings include:
VATS Delete
AFM Delete
Torque Management Modification/Removal
Considerable Shift and Torque Converter Improvements*
Tire/Gear Change Calibration
Speed and Rev Limiter Increase
Accommodation of Most Modifications (Internal engine modifications, superchargers, turbochargers**, upgraded transmissions, etc).
All 2014+ 5.3Ls owners are strongly encouraged to use a minimum of 89 octane at all times due to compression ratio.
All 2014+ 6.2L engines require 91+ octane for optimal performance and efficiency due to compression ratio.
*Transmission tuning NOT available on 2017-2018 8- and 10-Speed Transmissions.
**Due to variability in turbocharger systems, they must be evaluated by our tuner prior to committing to any services. Additional tuning service/hardware may be required.
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