Burger tuning JB4 chip - did anyone try installing it on E92?
 

So, I have a E92 2007 with twin turbo, and I would like to add some power to my car.
Did anyone try installing this Burger tuning JB4 chip?

What was the result? Where you happy with in? Anyone does it in Ontario (Canada)? I read some reviews on the internet, it sounds promising.