Quote:
Originally Posted by oneintheory
Here's my big question: I know that a piggyback or reflash of any kind voids the powertrain warranty (if discovered), but I'm not concerned about that as the JB is invisible and extremely easy to install and uninstall for services. How does BMWNA feel about aftermarket intakes? What would the potential warranty interaction be on one? If there's any chance at all that there would be negative warranty interaction, I'll probably avoid one.
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JB3 has already been discovered by BMW dealers on other user's vehicles and they were denied warrenty work. It threw some kind of code.