Kbox kleeman or Brabus B20S ECU upgrade

[firstime911]

Hi,
Anyone has done their ECU upgrade either Kbox or Brabus?
I thinking about to upgrade E200cgi by installing Ecu upgrade from those brand.

Any feedback on the performance vs. cost and maintainance.

Thanks for your response.

 

[Dr-Nab]

If your warranty matters then go for Brabus, otherwise go for the Kbox, I've heard they're as good, a lot cheaper but just not warranted by MB.