Any legitimate Dinan tune will be known to Dinan, and they require a VIN as they report EVERY tune to BMW. This is the only way that they will warranty their tune, as they almost always work with BMW with warranty issues.
Originally Posted by dunderhi
I guess if you have time to have an indy remove the tune prior to any dealer visit, they may not see evidence of a tune. Of course, that assumes Dinan doesn't share your VIN with BMW. I'm not saying they do, but Dinan does use the VIN for their records.
2013 F10 550i M-Sport | Space Gray | ZMP | ZEC | 6-speed | Dinan Stage 3 Tune | Dinan Exhaust | ACS Springs | 35% Ceramic Tint