Quote:
Originally Posted by shenard
That is correct. Their latest Progman update on the 335i and all models can now detect whether or not a piggy back has even been installed and they are voiding a lot of warranties as a result of this. My service director said that BMW has already voided about 12 BMW owners warranties at my dealers because they had a tune of some nature and one guy had to fork out over $6k because his turbo was blown on 335i. These engines are so complex and with the computers as advanced as they are, I personally would not get a tune unless I knew I had backing by a group like Dinan. Better a little conservative and safe with increased power than trying to max your power increase to the limit and risk a lot of potential headaches and out of pocket expenses.
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+1
The last thing you want is to have to fork over a couple of $1000 bills for the 'extra' Hp that some other mods promise.