That was me. It was only long because I used a kit from my old car. They were 9005 bulbs and not the H7's the crossfire uses.

If you get a kit built for an H7 design, it will work out great.

BTW I made some minor adjustments to the 9005 Hid bulbs and they are PERFECT. Drove a crossfire the other day w/o HID and when night fell, I hated it!

Here is a photo line up of all the different HID bulbs. Look at the length difference between H7 and 9005.

http://www.midnightmoose.com/hid_index.htm

Here are some shots of HID vs Halogen on my car

http://www.dfwsbr.com/crossfire/HID/