1999-2000 Chevrolet Express 4.3L and 5.7L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) 20-25ft-lbs of torque gains are

20-25ft-lbs of torque gains are common out of this platform

7L up to 30-35hp on a 7

Black Bear Performance offers our AutoCal custom tuning service for your 2009-2014 GMC Yukon 5

Black Bear Performance offers our AutoCal custom tuning service for your 2010-2020 Chevrolet Express 4

1999-2000 Chevrolet Express 4.3L and 5.7L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) 20-25ft-lbs of torque gains areBlack Bear Performance offers three different levels of custom tuning for your 1999 2000 Chevrolet Express 4. 3L and 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 10 15hp range on a 4. 3L and 15 20hp on a 5. 7L along with a 1 2mpg improvement depending on vehicle condition and configuration. Other improvements range from improved idle smoothness to better shift