Originally Posted by Tom C
I thought about tuning mine but there really isn't a tune out there right now that I trust...and I don't want to be some tuner's guinea pig. But if a reputable tuner puts something out there that is reliable and can quantify the gains...and will provide some sort of warranty...then I would probably pull the trigger. Until then, I will try to see what it can do without a tune at the track.
No tuner will provide a warranty with their tune, with the exception of maybe Dinan. Like I have already alluded to, Dinan has not come out with a single mod for the F10 M5 and the 2013 M5 been out for a year here in the United States already. At least give us some lowering springs Dinan, are you listening? Lol!