Originally Posted by RollingHard28
I talked to a service technician at BMW and straight up asked him if I brought a modded car to them would it be a big deal?
He basically said they do not care about mods when it comes to simple services like oil changes.
So basically if you have your car tuned for a regular service, you should be cool. Just take it off and clear it before taking it for warranty related issues or engine related issues.
I just ordered my JB4, so I am excited to be getting some extra HP out of it.
You might get a different answer talking to your service tech vs. your service advisor vs. the person who makes all the calls warranty issues.