2007-2008 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my ECM and TCM in to be tuned improved throttle response and improved

improved throttle response and improved mileage in many cases

we can help your engine perform as optimally as possible

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improved towing and improved throttle response

We reserve the right to modify that policy as we see fit and will notify all affected parties

2007-2008 Chevrolet Avalanche 5.3L and 6.0L Custom Tuning Tune Installation Option (Scan cable and Traditional tune ONLY):I will mail my ECM and TCM in to be tuned improved throttle response and improvedBlack Bear Performance offers three different levels of custom tuning service for your 2007 2008 Chevrolet Avalanche 5. 3L and 6. 0L. 15 20hp gains are common out of the 5. 3L variation and 6. 0L engines can see a monster 40 50 ft lbs of torque. 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 include: