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Ships within 48 hours · Estimated delivery Jul 24 - Jul 29
Horsepower and torque gains along with improvements ranging from improved idle smoothness to better shift performance
Black Bear Performance offers three different levels of custom tuning service for your 1999-2007 GMC Sierra 6
1998-2007 (Classic) trucks and SUVs
Structure: Existing customers that have purchased replacement computers may trade those computers in towards the purchase of the AutoCal
EFILive AutoCal V3 Tuning System Horsepower and torque gains alongLooking for a versatile tuning system that will grow with your modifications while providing improved shifting, throttle response, and horsepower and torque gains? Need to program a newer 6 or 8 speed car or truck, but aren't able to meet up for our in person event? Would you like to be able to return the vehicle to stock before taking it to the dealer for service, all but eliminating the likelihood of any warranty concerns? If the answer to any of