2002-2006 Chevrolet Avalanche 5.3L and 8.1L Custom Tuning Active Fuel Management Disable 0L engines can see up

0L engines can see up to 30hp

15-20hp gains are common with 10-20ft-lbs of torque on 89 octane for the 4

AFM Delete

speed and control with an easy to read

Improved Throttle Response

2002-2006 Chevrolet Avalanche 5.3L and 8.1L Custom Tuning Active Fuel Management Disable 0L engines can see upBlack Bear Performance offers three different levels of custom tuning service for your 2002 2006 Chevrolet Avalanche 5. 3L and 8. 1L. 20 25hp, 15 20ft lbs of torque gains are common out of the 5. 3L variation and 8. 1L engines can see a monster 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! Due to frequent