F10 / F11 (2011 - 2016)
Hello, my current car, the 535d, is my second car and I am now much more experienced with cars than my first 328i. I was wondering how much of a difference you will feel with a: EGR delete kit, DEF, DPF, Downpipe, and a DUDMD tune with all of those codes going to be removed when the tune is...