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 We tend to see power

We tend to see power gains in the 15-20hp/20-25ft-lbs range and 1-2mpg improvement

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

Submit a security deposit for the scan cable hardware ($400)

Contact us for more details

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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 We tend to see powerBlack 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