Quote:
Originally Posted by Musaabi
Here what I was told by a BMW employee who has his car tuned. "Just do it. If anything goes wrong and bmw doesn't wants to void the warranty, they legally have to prove that what you did caused the issue." So if you blow the engine up somehow, bmw can't say you tuned it so that's why, they have to be able to show the tune is what caused the engine to blow up. I've read this in other places while doing research and apparently this is a law in the US, manufactures can't deny warranty until they prove your mods are what caused the issue.
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I thought the main thing is BMW has new ECU's that are completely locked... So you can't tune it even if you want to.