The factory ECU calibration includes many compromises removed by your IE Tune. One of the most problematic is the stock cylinder deactivation which attempts to increase fuel economy by only running 4 cylinders when cruising. This causes rough shift, loss of power, and is believed to cause early failures of motor mounts. Cylinder deactivation is completely turned off by default. If you want to keep cylinder deactivation, we will reactivate on request.
Although full E85 is recommended for the highest power output, safeguards are included within the E85 ECU calibrations to adjust for ethanol as low as E65. This flexibility gives you the confidence to safely fill up at the pump which can commonly test lower than advertised.
IE's fully proven software brings track-ready ECU programming to your turbocharged V8 engine while retaining factory comfort and reliability. IE's own tuning technology suite is used to completely reverse-engineer the factory ECU mapping, allowing our software engineers access to realign all safety protocols and sensors for the new performance calibration. Every tune parameter undergoes months of testing on our in-house dyno systems that utilize the world's only Sea Level Generator developed specifically to verify tune operations in any condition. Confidently drive from LA to Pikes Peak with power that will keep you smiling every mile!