RENNtech E63 S AMG 4MATIC+ ECU Upgrade 773HP | 778 LB-FT
numbers based on stock car? Stock performance exhaust? Without downpipes? What about future updates from MB or when I send my car in to the dealership can it be detected if I don’t revert tune back to stock? Or would I have to set it back to standard send the car in and reflash the tune again after collecting the car. I assume it’s a flash ..or is it an ecu replacement that I will have to physically remove and install back stock ecu
also regarding the lowering module..after installing via obd does height adjust automatically based on dynamic selector mode e.g comfort sport sport plus race? ( normal / low /lower/lowest) And I assume the module doesn’t have to be permanently plugged in once the files has been transferred right? Just a one time flash and I throw it away since it can’t be married to another vehicle
thanks
When is the new Piggyback module going to be available and what kind of gains can be expected through this route?
From 11:40'ish






