1999-2000 GMC Yukon 5.7L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):Unblemished PCM (<5% paint missing) [+$125] 0L engines can see up

0L engines can see up to 30hp

turbochargers**

Exceptions can be made for extenuating circumstances

which includes the tune service and software license

1999-2000 GMC Yukon 5.7L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):Unblemished PCM (<5% paint missing) [+$125] 0L engines can see upBlack Bear Performance offers three different levels of custom tuning for your 1999 2000 GMC Yukon 5. 7L. From bone stock to heavily modified, we can help your engine perform as optimally as possible. We tend to see power gains in the 15 20hp 20 25ft lbs range and 1 2mpg improvement, depending on vehicle condition and configuration. Other improvements range from improved idle smoothness to better shift performance, improved towing and improved