2008-2009 Hummer H2 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) This time period is defined

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

Black Bear Performance offers three different levels of custom tuning service for your 2007-2008 GMC Sierra 4

Whether you are encountering an issue with the security system that is preventing your engine from starting or you are swapping a GM engine into an old hot rod

Due to frequent issues with 6

2008-2009 Hummer H2 6.2L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) This time period is definedBlack 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