That's completely unrelated. Its been discussed in other threads.
Originally Posted by **335i**
comon guys, dont play with engine problems
I don't blame you for not reading the entire thread, but it's already been pointed out that this is no different to the car than installing an aftermarket exhaust.
FWIW I've been running like this for over a year now. What's more, I've been to the dealer 2 times for routine service and they never said anything.