http://www.carparts4less.co.uk/Its part of Euro Car Parts.
They are all LUK flywheels fitted to the MK5 GTi and Ed30's.
Word of warning - i checked my delivery over yesterday and they sent the wrong flywheel bolts. Seems they're just as bad as Euro Car Parts for providing incorrect parts (i ordered the right ones!)Thankfully everything else seems to be correct / correct part number
Get a LUK dual mass flywheel as Alex has already said that's whats fitted to your car from the factory ( mkv gti yes ? )