Originally Posted by cwg
Neither company makes a tune for the N55 - why are you posting on things you know nothing about
I know Dinan, AA, OE Tuning, BMW PPK are all ECU "tune". But I want something that can be reversed by myself. All "tune" that you referred to can only be tuned back to stock by the company if it's reversible. JB4 and Procede are piggyback "tune". But both can be installed and uninstalled by user. And that's a big plus for a lot of people. By the way, I did not invent the word "tune" when referring JB4 and Procede. That's how www.vishnutuning.com
refer Procede and JB4 as "tune".