I have a 05 STI 6 Speed for sale. This is the better, earlier 6 speed with the 3.9 Final and Clutch type rear diff. It comes with:

05 STI Tranny
Kartboy Short Shift Kit
DCCD Switches
R180 3.9 Clutch type Rear End
Front Axles
Driveshaft
Clutch & Flywheel
Starter

45k miles, 3,500 OBO