Clip Lite Aerobar
The clip lite is a versatile clip on bar for your road bike. Available in 31.0 and 26.0 (with a an adapter from Echappe), you can mount this on any road bike.
Combine this with a Giro Advantage 2 helmet and some light wheels and you've transformed your road rig into a competitive TT machine. Don't lose a stage race because you don't have a $5000 bike. Keep yourself in the top GC spots with these few items and reap the benefits of having an elite advantage.