if a GLS 2000 .... not in vr6.. you have probably the 11inch "poor" disc. if you wanna upgrade you gonna need to buy 2 front spindler + front caliper/carrier
thumbs up for r32 front. keep the rears as is just do new pads and rotors and service all the parts.
i went with R32 fronts and TT in the rear .. found everything on vwvortex for a good price