Upgrades finally completed. Now I have a car that handles like a proper BMW.
The upgrades that I did for now:
* Rear Underbody brace;
* Bilstein Pro Kit Springs (with OEM shocks);
* 17" Wheels from Sport line edition
It now has a harder ride and steering feels way stiffer and connected. The car now handles much better, the boat feeling I had when turning is almost gone.
I'm also not satisfied with brake sensitivity... they are too soft and don't bite like VW cars... after reading a few posts, I'm planning to upgrade pads to Brembo let's see how it goes...
Don't know if upgrading brake fluid makes any difference on this, I guess it only helps with brake fatigue but i'm open to opinions.