![2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Black Bear Performance offers three](https://cdn.shopify.com/s/files/1/0673/0504/6304/files/BlackBearLogoFullColor_8bb4aaa1-97e7-4e39-8ac8-897fbc8026c9.png?v=1708632822)
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Black Bear Performance offers three different levels of custom tuning service for your 2007-2008 GMC Sierra 4
Need to program a newer 6 or 8-speed car or truck
AFM Delete
3L engines will typically see a 15-25hp/15-20ft-lbs gain (octane dependent)
2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Black Bear Performance offers threeBlack Bear Performance offers three different levels of custom tuning service for your 2008 2009 Chevrolet Express 4. 8L, 5. 3L, 6. 0L (4 speed). 15 20hp gains are common with 10 20ft lbs of torque on 89 octane for the 4. 8L and 5. 3L, while 20 25hp and 25 30ft lbs gains for the 6. 0L. Combine that with improved shift patterns, towing capabilities, throttle response and even fuel economy in many cases and you'll have what feels like a whole new
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