So you have first SH06... Have installed VersaTuner and connected via OBDLink MX. I suppose I should wait with installing on car until a tune for my SH06 will be ready?

Our base ROMs are based on the latest factory calibrations for each ECU code available at that time and are functionally identical to the factory calibrations. We don't use a single base ROM for all ECU subtypes like some other vendors. What concerns factory updates, every once in a while we review...

Once you install VersaTuner on your car, it flashes a base ROM that replaces anything that was on the ECU previously. That's interesting, I thought that base ROM stays from factory and only some tables are overwritten. How do you solve multiple factory calibrations published more than once a year f...

IMO reducing EGR amount (as SH engine's deNOxing only through uncommonly cooled EGR) would be good step to improve combustion efficiency and reduce EGT mentioned in your last article . At the cost increase of NOx emissions, of course... 8-) Here's EGR valve logic: https://euroesi.mazda.co.jp/esicon...

IMO reducing EGR amount (as SH engine's deNOxing only through uncommonly cooled EGR) would be good step to improve combustion efficiency and reduce EGT mentioned in your last article . At the cost increase of NOx emissions, of course... 8-) Here's EGR valve logic: https://euroesi.mazda.co.jp/esicont...