those 19" Helios wheels are with 225/35 R 19 rubber only 0.9 % bigger then the stock 17" wheels and have an ET of 45. So with just changing the US springs for Euro Springs you don't gonna rub and the gap will be seriously bigger for you using the normal GTI euro springs then to the German guy from who the pics are from the blue Golf with those Helios wheels in the beginning of this thread. He has lowered his stock regular Golf 45 mm (1,8") and then you stil have a little gap between the fender and the wheel