If you already have the 9006 HID's, then why don't you just stick em in the stock housing and see how much glare there is? Some people say there's glare, and some people who actually done them on the 6th gens say there is no or minimal glare, so only one way to find out for sure . Take some pics if you decide to do it.

(for the TYC headlights you are looking at, you need H1 bulbs, the 9006 bulbs won't fit right in those)