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improving fuel economy
whichever comes first
*Transmission tuning on 2017-2020 8- and 10-Speed Transmissions is available
Please check with us first on availability
speed and control with an easy to read
2007-2008 GMC Yukon 4.8L, 5.3L and 6.0L (excl. Denali) Custom Tuning Active Fuel Management Disable improving fuel economyBlack Bear Performance offers three different levels of custom tuning service for your 2007 2008 GMC Yukon 4. 8L, 5. 3L and 6. 0L. 15 20hp gains are common with 10 15ft lbs of torque on 89 octane. 6. 0L engines can see up to a monster 40 50ft lbs! 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 vehicle! Additional service offerings
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