1999-2000 Chevrolet Express 4.3L and 5.7L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) and models

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*Transmission tuning on 2019-2020 8- and 10-Speed Transmissions is available

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) and modelsBlack 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