No, like itsafastworld said, depends what wheels you are running.. 14" VTR wheels can only get the 206GTI 140 brakes on, thats near enough the biggest you will get under those..thats what i have and they are soo close to the wheel.
Think you would need a minumum of 16" wheels to run GTI-6 brakes..not 100% someone correct me if i'm wrong..
And yes, they will fit straight on, just needs some slight grinding to the caliper carriers so they will fit..