[kmodel99]

I want to start doing ChipTuning. I want to do new cars (2010 and up, sometimes a bit older). For start I want get hardware to read files from ECU, send to people who can modify it for $$$ and write to ECU. Now I'm doing BMW, Mercedes, VAG and I'm specially interested in this makers, but I also want other. So:

1) What hardware buy? Is it really need to start with genuine or it is possible to start with clone? KTAG, KESS or Galetto? One guy advice me that if I want to buy clone I should buy KTAG, because usually I will be dissaembly engine ECU all time with clone.
2) I heard that I can't do any new BMW (2012-later) with clone, only with genuine, is it correct?
3) How about dyno? I want to buy road dyno (install on or in car and go to test drive on highway). What do you think about this?
4) KTAG and KESS is AlienTech product (alientech-tools.com) and Galetto is FG Tech (fgtechnology.it)? Do this websites are correct?
5) Someone told me that without genuine product I can't do lot of ECU with OBD, and I will need to dissasembly ECU. Is it correct?
6) Any advices?

I will be very thankful for any information!