Please search. This has been covered many times. In short it has caused some people issues with warranty. In fact, I believe there is now 3 blown engines from people with the reflash (not that the reflash was the issue necessarily), but the dealer blamed it on the reflash and no new free engine. I think 2 of 3 people have been denied due to the reflash. Yes, it can cause warranty issues like any aftermarket part. Use this any any mods at your own risk...
Closed