alot of people will dis agree with me! but i say DON'T do it!
i cant see why every one is mad on ripping the arches off looks better with them and also its what makes the mk3 gti a mk3 gti imo. look at cars like shep gti's i think it is perfect example of how a mk3 gti should look, nice subtle mods and kept there arches (the identity of a mk3)

dose look nice with out arches but imo not as good.
