Go do some reading on Dinan. FYI BMW has denied warranty work on people with Dinan mods too. Then you get stuck chasing down Dinan for your claim. It's your money. Since you spent $70k for a Diesel SUV, you must know what's best. All us other rubes have no clue with our $69,999 trucks.

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2013 X5 Xdrive35i Premium
2013 F30 328i
2004 Mustang GT Very Modded...