1999-2007 Classic GMC Sierra 2500/3500 6.0L and 8.1L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my PCM in to be tuned Black Bear Performance offers our

Black Bear Performance offers our AutoCal custom tuning service for your 2015-2020 GMC Yukon 5

Black Bear Performance offers three different levels of custom tuning service for your 2007-2008 Chevrolet Suburban 5

Black Bear Performance offers three different levels of custom tuning service for your 2007-2008 Chevrolet Avalanche 5

3L up to 30-35hp on a 7

1999-2007 Classic GMC Sierra 2500/3500 6.0L and 8.1L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my PCM in to be tuned Black Bear Performance offers ourBlack Bear Performance offers three different levels of custom tuning service for your 1999 2007 GMC Sierra 6. 0L and 8. 1L. Gains vary by engine type, configuration and vehicle condition prior to the tune. 6. 0L engines will typically see a 20 35hp gain and 25 30ft lbs. 8. 1L engines will commonly see a 30 35hp gain and as much as 50 55ft lbs of torque! Power gains, combined with improved shift patterns, towing capabilities, throttle response and