The injectors being swapped out has nothing to do with Dinan. That's an issue some F10's have and there are actually updated fuel injectors that are out now if you have an issue with your current setup. My friend has a stock 2012 550xi and he had all his swapped out.

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2013 M6 Coupe SG, Akropovic Evo Carbon, VS Full Aero Kit & VS-3XX's 20's, Gruppe M Intake, Bel Stir Plus with Dual HP Laser Interceptors, JL Custom 2X12W6V2's Subs, 35% tints all around.