This is a brand new 6-Speed Transmission that came in the 2007 STI.
1st - 3.636
2nd - 2.235
3rd - 1.521
4th - 1.137
5th - 0.971
6th - 0.756
Reverse - 3.545
Front reduction gear - 3.900
Transfer reduction - 1.1
Rear reduction gear - 3.545
Transmission gear oil - GL-5 4.3 US quarts
This transmission has a 1.1:1 transfer reduction, which is the same as most of the previous WRX models, making this transmission easier than most others to retro-fit into a WRX. You will need other parts to get this swap to work, but this year of transmission is without a doubt the easiest because it requires changing out the minimum # of parts to get it to work correctly.
This is for the transmission only, and does not include shift-linkage, axles, propeller-shaft, etc.
Because of the size and weight of this part, it must be shipped as freight.
2007 STI Transmission with 2002 - 2003 WRX Install Kit:
This kit includes a brand new 2007 STI Transmission, and all the parts that are needed to swap this transmission into a 2002 - 2005 WRX except the drive shaft.
You need an automatic Impreza driveshaft from a 1998 - 2007 Automatic Impreza, or an STI driveshaft which will require modifying your rear differential flange. The automatic drive shafts are readily available used for a low price, and that is why we recommend that option.
The DCCD will also not be active unless you install an aftermarket DCCD controller. We do recommend this, but you do not need a working DCCD to drive the car. If you do not hook up the DCCD, it will be in its open setting which sends most torque to the rear wheels, or is a 35 front 65 rear split.
If you have any questions, please call us before ordering.
2007 STI Transmission with 2004 - 2005 WRX Install kit:
As the 2002 - 2003 install kit, but with parts that allow you to use your 04 -05 front WRX Axles.
With Either Kit, the only additional parts that you would need are a cluch and flywheel if you chose to put a new one in, the shift-knob of your choice, a drive-shaft, and a DCCD controller if you chose.