Vortex Stator Cover (left side engine cover) for a 2004-2005 GSXR600 or GSXR750, or a 2001-2003 GSXR1000. The Vortex part number is CS503K. The part is completely brand new, and still sealed in it's original packaging. The outer box is a little worse for wear due to being shuffled around in the "spare parts" pile for a few years, but the cover itself is perfect. $75 plus actual shipping.