Hi to everyone! I own bmw 520d for almost 2 years. Few months ago I decided to increase the engine performance and i was adviced that dkr chip tuning is excelent solution. Since than i love the car much better than before, it runs more smooth and powerful, eats more diesel than before ( only 1 liter more per 100 km) which is not big deal. I do have some questions for you i hope i am in the right place and some of you will have the answers. I hope we'll have fun.