So you've lowered your car and now the driveshaft is rubbing on the Anit Roll Bar.
These are the recommended arb's:
Mk4 Golf R32 - 1J0411305AF (23mm)
Mk4 Golf 4 motion - part number and size needed ....
Mk1 Audi tt - part number and size needed ....
Audi S3 - 1J0411305AA (19mm)
Skoda Octavia VRS - 1J0411305AD
Seat Leon Cupra R (MK1)
Whiteline ARB
All the above go under the drive shaft and WILL not rub regardless or how low you go. You may need to fit adjustable drop links as well.
The likes of the Eibach, H&R, FK ARB or any other which loops over the top of the driveshaft will only give you a little clearance and depending on how low you go may rub.
Any other info you think will be helpful please post and we'll add it.