2010-2020 Chevrolet Express 4.3L, 4.8, 5.3L, and 6.0L Custom Tuning

Black Bear Performance offers our AutoCal custom tuning service for your 2010-2020 Chevrolet Express 4.3L, 4.8L, 5.3L and 6.0L. Gains vary widely by engine type and configuration. 4.3L-5.3L engines will typically see a 10-25hp/15-20ft-lbs gain (octane dependent) 6.0L engines will typically see a 20-25hp/25-30ft-lbs on (octane dependent) 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 2010+ owners are strongly encouraged to use a minimum of 89 octane at all times due to compression ratio. *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.