you can make D2S bulbs outta your D2R bulbs... just carefully scrape the masking off the bulbs and clean them up good with alcohol.

Integra projectors will work... and being they are 9006 already, there wont be any bulb fitment issues. BUT, I cannot gurantee the beam pattern will be great... I installed a set of 9006 HID's in my friends integra, and the beam pattern kinda sucked.

Im selling my HID ready projectors for $100 (from an audi A6)