Quote:
Originally Posted by chenry
yes 100% any engine mod can be detected if BMW wants to dig deep enough (piggyback or flash doesn't make a difference - question those that tell you otherwise) - that said are you likely to experience a catastrophic failure of a magnitude that would cause such a probe....not likely unless you move well beyond a simple AA/JB4/RaceChip (piggybacks) or flashes stage 1 or 2 (Mission Performance, BM3, MHD) etc . But given your question and your reference to 100% the answer is no - nothing is fool proof.
That said - keep in mind a piggyback or flash (either one detected) does not simply cancel your warranty - here in the US your mods only cancel the portion of your warranty that covers parts you may have compromised by making changes
Hope this helps a bit
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This helps a lot. Thank you. Question though.... What portion of the warranty would be compromised with installing a JB4 and/or a flash tune?