Passlock Delete Tune All 2010+ owners are strongly

All 2010+ owners are strongly encouraged to use a minimum of 89 octane at all times due to compression ratio

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

7L up to 30-35hp on a 7

Shift and Torque Converter Improvements (2015-2016 only)

improved throttle response and improved mileage in many cases

Passlock Delete Tune All 2010+ owners are stronglyWhether 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, we can help. This service disables the Passlock System (otherwise known as Vehicle Anti Theft System (VATS) or Theft Deterrent) within the PCM on most 1998 2013 GM Trucks and SUVs. This option will require the PCM from the vehicle to be shipped to us to be programmed. Please contact us for our