ECU and TCU tuning requires access to the original maps. The issue: manufacturer-provided files (FRF, SGO) are not directly usable for tuning.
That’s why these files must be converted into BIN format, the raw binary format supported by reading/writing tools (KESS, KTAG, Flex, etc.).
FRF and SGO files are the official formats used by ODIS (VAG dealer tool). Converting them to BIN allows free modification, with the option to reconvert them later for reflashing with ODIS.
Raw binary format, editable and supported by ECU/TCU read/write tools.
Official manufacturer format used by ODIS for ECU/TCU updates.
Older VAG format, similar to FRF, still used in some updates.
Enables switching from an official format (FRF/SGO) to a modifiable one (BIN) and back.
A BIN file is a raw format readable and editable by tuning tools, while an FRF file is an official manufacturer file used by ODIS for updates.
Yes, an SGO file (older VAG format) can be converted into BIN for editing, and then reconverted if needed.
Tools like KESS, KTAG, Flex and other ECU/TCU read/write interfaces use BIN files.
Converting FRF and SGO files into BIN is a key step for any ECU/TCU tuning on VAG vehicles. It enables map editing while ensuring compatibility with professional tools. The reverse operation (BIN → FRF/SGO) ensures reflashing via ODIS while maintaining manufacturer compatibility.
Contact us for a professional conversion service and optimize your ECU/TCU reprogramming.
