Thread: N55 tunes?
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      06-26-2012, 12:08 AM   #9
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Originally Posted by Golden3ye View Post
I really want to put jb4 on my N55 lease but am scared that when I give the car back or take it in for service they will see some code that indicated it at one point had a tune.
Dealers cannot find those sort of codes. The ECU would have to be copied and sent to BMW in Germany for a major analysis. Which dealers do not do on a lease return. They only do it if there is some major issue such as an engine blowing.