![2010-2020 Chevrolet Express 4.3L, 4.8, 5.3L, and 6.0L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) Black Bear Performance offers three](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 24 - Jul 29
Black Bear Performance offers three different levels of custom tuning service for your 2001-2004 GMC Sonoma or S15 Blazer 4
Requires the use of a Windows-based laptop
KEY FEATURES
20-25hp gains are common with 30-35ft-lbs of torque
All 2007+ 5
2010-2020 Chevrolet Express 4.3L, 4.8, 5.3L, and 6.0L Custom Tuning Tune Service:Transmission Tuning Only [$525] ($400 Deposit Included) Black Bear Performance offers threeBlack 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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