![2010-2020 Chevrolet Express 4.3L, 4.8, 5.3L, and 6.0L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) Requires the use of a](https://cdn.shopify.com/s/files/1/0673/0504/6304/files/BlackBearLogoFullColor_56615d9b-88ac-44f5-b1c5-54286b452ce5.png?v=1708639757)
Pay in 4 interest-free payments of $93.62 Learn more
Ships within 48 hours · Estimated delivery Jul 25 - Jul 30
Requires the use of a Windows-based laptop
Credits and tuning are sold separately
3L engines will typically see a 15-30hp/15-20ft-lbs gain
KEY FEATURES
Black Bear Performance offers three different levels of custom tuning service for your 2001-2004 GMC Sonoma or S15 Blazer 4
2010-2020 Chevrolet Express 4.3L, 4.8, 5.3L, and 6.0L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) Requires the use of aBlack Bear Performance offers our AutoCal custom tuning service for your 2010 2020 Chevrolet Express 4. 3L, 4. 8L, 5. 3L and 6. 0L. Gains vary widely by engine type and configuration. 4. 3L 5. 3L engines will typically see a 10 25hp 15 20ft lbs gain (octane dependent) 6. 0L engines will typically see a 20 25hp 25 30ft lbs on (octane dependent) Combine that with improved shift patterns, towing capabilities, throttle response and even fuel economy in
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