2007-2008 Chevrolet Silverado 1500 4.8L, 5.3L 6.0L (Vortec MAX) Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) Black Bear Performance offers our

2007-2008 Chevrolet Silverado 1500 4.8L, 5.3L 6.0L (Vortec MAX) Custom Tuning Tune Service:Scan Cable [$815] ($400 Refundable Deposit included) Black Bear Performance offers ourBlack Bear Performance offers three different levels of custom tuning service for your 2007 2008 Chevrolet Silverado 4. 8L, 5. 3L and 6. 0L (Vortec MAX). 15 20hp gains are common with 10 15ft lbs of torque on 89 octane on the 4. 8L and 5. 3L. The 6. 0L Vortec MAX (VMAX) trucks are able to see a whopping 40+ft lbs of torque and significantly improved overall driving characteristics.. Combine that with improved shift patterns, towing capabilities,

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