Posted this on AZ, but I thought there might be some interested here. Here's what the guys at Rosten had to say
Well, after asking some questions to the guys at Rosten, I went ahead and ordered a set of upgraded springs.
Here's the link vw Audi 1.8t 20v HD valve spring kit | eBay
XTRA HID Conversion Kit
$225 shipped per kit within USA for all color temp range (5000K, 6000K, 8000K)
If we have 5+ ppl I can do $218.
However at $225 I can ship as the orders come and go.
This time I work woth the imported (I do not import) so all orders will be shipped within 5...