2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable if you have or plan

if you have or plan an aftermarket cam swap

2L engines require 91+ octane for optimal performance and efficiency due to compression ratio

Faster Transfer Speeds with Wi-Fi

Improved Throttle Response

If there are any mechanical problems

2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable if you have or planBlack 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