That's a fantastic price, GLWS. Buyer would only need software from ESS. Do you have the white/gray-ish injectors? If so, the buyer could possibly get the 625 software from what I understand.
What were the track temps and how many laps per session were you doing to see a rise in oil temps? I haven't seen even a 1 degree increase in 3 track days (about 9 sessions of 10-16 laps per session).
Daily: 2013 e92 M3 MW FR DCT ZCP / ESS VT2 650 S/C, MRF mid/Akra slip, ST BBK
Track/Airstrip: 2011 997.2 Turbo S PDK / GIAC tuned / Ohlins coils+LCAs+endlinks setup by BBI Autosport
Beater: 2013 X5 3.5sport