Mikey:
The two Michelin Pilot Sports have 3/16" to 1/4" left...the Goodyear Eagle RSAs have 5/16" to 3/8" and 7/16" - 1/2" respectively.

IStealBunnie:
In order to make the 8000K HID kit to work...you would need to buy two HID kit ballasts (with AMP connectors)...you can find these on eBay or else where if someone is parting their kit...