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Old 04-03-2012, 08:03 AM   #44
BMW E465
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Join Date: Aug 2007
Location: Sydney, Australia
Posts: 750
My Ride: 1dirty5
Originally Posted by Rubenk View Post
I would not count on that being "undetectable". The new Ford 5.0's had people claiming the same until warranties started getting denied for tunes.

Ford's method involves a key cycles counter, so even if you have the stock file loaded, the numbers wont match up, E.G., 20,000 miles but only 10 key cycles....

I'm sure BMW is just as, and most likely more sophisticated than the Ford ECU.
Correct, BMW's latest software allows them to see when the ECU parameters have been altered. EVEN after the tune has been taken off. There's a way around this though which is working for the time being. (sorry I'm not posting it here in case anyone was wondering, go look on e90post) =)
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