1999-2007 Classic Chevrolet Silverado 1500 4.3L, 4.8L, 5.3L and 6.0L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) The scan cable and factory

The scan cable and factory computer(s) (if desired) are returned to us for a refund of the deposit (less 3% merchant fees)

Black Bear Performance offers three different levels of custom tuning service for your 1999-2007 Chevrolet Silverado 4

1L vehicle used for heavy towing

Black Bear Performance offers our traditional custom tuning service for your 1996-1997 GMC Sierra

data-driven calibrations designed for real-world performance and drivability

1999-2007 Classic Chevrolet Silverado 1500 4.3L, 4.8L, 5.3L and 6.0L Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) The scan cable and factoryBlack Bear Performance offers three different levels of custom tuning service for your 1999 2007 Chevrolet Silverado 4. 3L, 4. 8L, 5. 3L and 6. 0L (Including Silverado SS!). Gains vary widely by engine type and configuration. 4. 3L engines will typically see a 10 15hp 15 20ft lbs gain 4. 8L and 5. 3L engines will typically see a 15 30hp 15 20ft lbs gain. 6. 0L will see a 25 30hp 20 25ft lbs gain on 91+ octane! Power gains, combined with improved shift