Quote:
Originally Posted by Fuel-It!
A good piggyback can't be detected especially if it has CANbus, but a flash tune they can always detect even if flashing back to factory later. It's all about the risk reward ratio.  |
I read where as soon as a tune/piggyback allows a higher boost pressure than what BMW has programmed the DME for, that will tip them off.
Not worth the risk of losing the powertrain warranty. Those parts can be pretty pricey.