I wud agree with chunt69 solid pipes, but replace the rubber flexi hoses with braided items, all that's required for road use really! And they're available from places like rally design or burton power!

I do have a question tho, say you're running Cossie 4x4 calipers on ur S2, what braided hoses do you need, ERST ones or Sapph 4x4 ones?

Lee