2008-2009 Hummer H2 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) 3L and 15-20hp on a

3L and 15-20hp on a 5

3L engines will typically see a 15-25hp/15-20ft-lbs gain (octane dependent)

Black Bear Performance offers our AutoCal custom tuning service for your 2009-2014 Chevrolet Suburban 5

Horsepower and torque gains along with improvements ranging from improved idle smoothness to better shift performance

2008-2009 Hummer H2 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) 3L and 15-20hp on aBlack Bear Performance offers our AutoCal custom tuning service for your 2008 2009 Hummer H2 6. 2L. 15 20hp gains are common with 20 25ft lbs of torque 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 Torque Management Modification Removal Tire Gear Change Calibration