whitline rear anti role bar, £177ish with droplinks delivered, front S3/TT mk1 anti role bar with associated goodies ie bushes etc you can pick up from Audi for about £150. according to Audi the thicker the diameter of the rear bar will add between 10-20% strength to the handling. i think i've worded that write

but if unsure just give your local dealer a call, they about 500% more helpful than VW, i spoke to parts desk and my local VW and asked about the R32 role bar and drop links and they started arguing with me that i shouldnt do it because it wont fit etc etc, Audi then went against what VW said and told me with a few tweeks it can be done

i was a wreck at the end of it