I beleive that the Scirocco or was it the Corrado clutch and lighter flywheel that would fit. Do you know what power you are putting down - it sounds like it surprises people, especially at the lights.
If you contact Helix directly in Banbury on 01295 701076 they'll give you details of distributors/dealers local to you. I'm considering one of these to replace the clutch in my remapped 406. It's slipping a bit now (101,000 miles from new on original clutch) and has had a remap about 60,000 miles ago as well, which does load up the clutch significantly.
At the moment it's just a graceful increase in revs under acceleration in higher gears but soon it'll be clouds of smoke and no progress at all.