![2014-2018 GMC Sierra 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] providing time to shut down](https://cdn.shopify.com/s/files/1/0673/0504/6304/files/BlackBearLogoFullColor_0953c504-544d-4f04-80f7-0c13aa7ebf23.png?v=1708639699)
Pay in 4 interest-free payments of $93.62 Learn more
Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
providing time to shut down an engine before damage occurs
The Authentication (Auth) Code will be shown in the Auth code: field under the F3: VINs screen
We tend to see power gains in the 15-20hp/20-25ft-lbs range and 1-2mpg improvement
0L Vortec MAX (VMAX) trucks are able to see a whopping 40+ft-lbs of torque and significantly improved overall driving characteristics
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2014-2018 GMC Sierra 1500 4.3L, 5.3L and 6.2L Custom Tuning Tune Service:AutoCal Tune & Hardware [$749] providing time to shut downBlack Bear Performance offers our AutoCal custom tuning service for your 2014 2018 GMC Sierra 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, throttle
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