Stars
Tool for plotting ECU logs (ME7L, VCDS, OBDLink, SimosTools, CobbAP, M-Tuner and more!)
Open source collaborative projects driven by the NefMoto.com community
RomRaider is a free, open source tuning suite created for viewing, logging and tuning of modern Subaru Engine Control Units.
setzi's ME7L plus a bunch of extra .ecu defines, Makefiles, and scripts
Device based on Arduino to play with VAG KWP1281
http://nefariousmotorsports.com/forum/index.php?topic=6457.0