He's a GTO owner who has his title as BMW Technical Specialist (24 years old) on the GTO board. Interesting that he mentions it is usually Dinan tunes. I have not heard of several blown engines getting denied in NJ. There is that many, or is their some embellishing going on?
"It's all fun and games for them till I decline the warranty on their blown engine. I see alot of E90 cases come through here with damaged, or completely blown N54 engines that usually have some sort of aftermarket software (usually a Dinan tune) running higher boost. Contrary to what a lot of people may believe, these motors are already running on the ragged edge out of the box. They can make good power at higher boost levels, but they just do not hold up well."