Run a map optimized for standard 91/93 pump gas, and switch to an aggressive E85 map when you arrive at the drag strip.
Maximized boost and timing for the best possible performance.
Ideal for valet parking, adverse weather conditions, or fuel efficiency.
MED9.1 Multimap: Ultimate Guide to Map Switching on VAG 2.0 TFSI Engines
If using the open-source command-line tool via GitHub, clone the repository and drop your binary dump into the directory. git clone https://github.com cd MED9.1-Multimap-Tool Use code with caution.
For enthusiasts of the VAG (Volkswagen Audi Group) platform, the Engine Control Unit (ECU) is a legendary piece of hardware. Found in the 2.0 TFSI engines of the Golf GTI Mk5, Audi S3 (8P), and SEAT Leon Cupra, it is the brain behind some of the most tunable cars on the road.