AUDI S6 & S7
The all new IE ECU & DSG Tune for the EA824 4.0T delivers a massive power increase, refined driving maps, harder launches, and full E85 support that will deliver up to 652HP!
FROM THE IE BLOG:
IE TUNE VS. CUSTOM
With so many tuning options on the market today, it's important to choose a tune that can meet your power goals reliably. "Custom tuning" may sound great on the surface, but could it be costing you more than it's worth?