2014-2018 Chevrolet Silverado 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] 2014-2019 will typically see a

2014-2019 will typically see a 25-30hp/30-35ft-lbs gain

improved throttle response and improved mileage in many cases

Black Bear Performance offers three different levels of custom tuning service for your 2007-2008 Chevrolet Silverado 4

3Ls owners are strongly encouraged to use a minimum of 89 octane at all times due to compression ratio

2014-2018 Chevrolet Silverado 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] 2014-2019 will typically see aBlack Bear Performance offers our AutoCal custom tuning service for your 2014 2018 Chevrolet Silverado 4. 3L, 5. 3L and 6. 2L. Gains vary widely by engine type and configuration. 4. 3L engines will typically see a 10 15hp 15 20ft lbs gain. 5. 3L engines will typically see a 15 25hp 15 20ft lbs gain (octane dependent) 6. 2L engines will typically see a 25 30hp 30 35ft lbs on 91+ octane. Combine that with improved shift patterns, towing capabilities,