I know already know the Dinan warranty (which you spelled incorrectly, by the way)[/QUOTE]
Gee, I guess my brain goes faster then my fingers - or is it the other way around??? (You also might want to proof your comment.
)
In any case, in spite of what some others have said I've had a number of Dinan mods over the years and never had any BMW service or warranty issues - just my experience.