better handeling, what do i need.

[Ed Doe]

my car with its full gti-6 suspension inc rear beam

I assume you're replying directly to the title of the thread?

But in response, (and this has already been covered afaik) you can do a lot better than the stock '6 set-up.

Xsara vts rear beam
Hybrid/race arbs
uprated springs&dampers/coilovers (the sky is the limit with regards to budget; progressive springs, damping & rebound adjustment, remote reservoirs etc etc.)
Adjustable top-mounts (the best ones I've seen are russianguys off the '6 forum, but theyre not cheap; spoox/compbrake ones will do as much camber/castor anyway without modifying the strut hole)
Machined trailing arms for additional camber/neutral toe, Roll-centre Wishbone adapters (read & be enlightened: http://www.306gti6.com/forum/showthread.php?id=146338)...Just to name a few... :roll: