1999 Passat Brakes

I have a 1999 Passat 1.8T and am in need of front brake rotors and pads. I talked to the guy at my favorite parts shop and he said I need to know which chassis I have. Apparently there were two different chassis for this model year for the 1.8T and I have no clue which one I have or how to determine/find out. :banghead:

Any help is appreciated.