![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) Black Bear Performance offers three](https://cdn.shopify.com/s/files/1/0673/0504/6304/files/BlackBearLogoFullColor_05c6a5b8-0817-4f6f-8f65-48e6aa734223.png?v=1708630678)
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
Black Bear Performance offers three different levels of custom tuning service for your 1999-2007 Chevrolet Silverado 4
more consistent tune and that is still the same today
Full 2007+ GM 6 and 8 speed transmission tuning support (2017+ 8 or 10 speed transmissions excluded)
1L vehicle used for heavy towing
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) Black Bear Performance offers threeBlack 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