Performance tune for OBD2 E36 3-series (1996-1999)

Program was very temperamental. After several tries the tune finally flashed to my M3s ECU. Despite being assured the tuned would not have rear O2 sensors throw a CEL for having a race exhaust, the tune still reads rear O2 sensors and pops CELs. I would recommend saving your money and using a dyno protuner instead.

Very quick, very easy, great support