2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Structure: Existing customers that have

Structure: Existing customers that have purchased replacement computers may trade those computers in towards the purchase of the AutoCal

3L engines will typically see a 15-25hp/15-20ft-lbs gain (octane dependent)

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

Black Bear Performance offers three different levels of custom tuning for your 1999-2000 Cadillac Escalade 5

2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Structure: Existing customers that haveBlack 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