How to install BMW Fuel Injectors in N55 Engine BMW 535i F10 2011-2017

Full walkthrough on how to install direct fuel injectors on 2010-2017 BMW 535i F10 with the N55 Twin Power engine. Injectors should be replaced every 100k miles, common symptoms of injector failure are multiple random misfire codes and rough idle with no engine codes also hesitation under throttle is also a sign the injectors need to be replaced.