2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable We tend to see power

We tend to see power gains in the 10-15hp range on a 4

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

please inform us at tuning@blackbearperformance

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 you have or plan an aftermarket cam swap

2009-2013 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Active Fuel Management Disable We tend to see powerBlack 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