CHenry Full Tune: $395 (2.5 hours)
February 18, 2016

The CHenry Basic tune will include transmission tuning for all 4, 6, and 8 speed GM automatic transmissions that have not been modified and still retain the stock torque convertor. Both part and wide-open throttle fueling will be calibrated and verified for safety. Wideband oxygen sensor calibration is not included at this price point. Torque management tables will be modified to customer’s taste. Spark tables will also be modified and calibrated to increase performance within acceptable levels of safety. Clients will be granted one free retune within the first 90 days. This tune is appropriate for lightly modified vehicles (Cold-Air Intake, different tire size, and/or different gear ratio).