2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable Whether you are encountering an

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

If there are any mechanical problems

whichever comes first

Improved Throttle Response

please inform us at tuning@blackbearperformance

2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable Whether you are encountering anBlack Bear Performance offers our AutoCal custom tuning service for your 2009 2013 Chevrolet Avalanche 5. 3L and 6. 0L. 15 20hp gains are common out of the 5. 3L variation and 6. 0L engines can see a monster 40 50 ft lbs of torque. 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