2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Black Bear Performance offers our

Black Bear Performance offers our AutoCal custom tuning service for your 2007-2014 GMC Yukon Denali 6

they must be evaluated by our tuner prior to committing to any services

We start off by having you collect your OEM tune file(s) as well as a scan of the vehicle's operating conditions while driving

7L and up to 35hp on a 7

MPVI4 is your all-in-one solution for scanning

2008-2009 Chevrolet Express 4.8L, 5.3L, and 6.0L Custom Tuning Tune Service:Traditional [$355] Black Bear Performance offers ourBlack 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