Hello TT`ler would like to have something changed with my TTR 110 KW for the purpose of more throughput I have read in the net now something of “software tuning” via OBD_diagnosis interface, which the company Häussler offers (Angebl. + 37 KW and + 80 NM). The whole works without opening the ECU and should be undone at any time (when selling ??). Has any of you heard about it or what ??? Thank you for all the information and assessments or other tips CU Bavarian