Assembled by Rallispec, the STi standard ratio gears feature a 5th gear that is identical to the stock WRX for those wishing to maintain the same highway performance. However, these gears provide improved reliability of the 5MT through similar hardening and strengthening features as found on the STi RA set listed above.
Now R.E.M. treated for increased strength.
This Kit Includes:
- Main Shaft
- 1st Gear Driven
- 2nd Gear Driven
- 3rd/4th Gear Set
- 5th Gear Set
- Main Shaft Lock Nut
- Output Shaft Lock Nut
- Pinion Shaft Lock Nut
- Transfer Case Gasket
- Front Main Shaft Oil Seal
- Custom Steel 3.9 Speedometer Gear
- Installation Kit for Correct year Car
Professional installation is strongly recommended, and you MUST order the correct installation kit for your car. If you are not sure what year transmission you have, you need to order the 02 Installation kit.
JDM STI
1st-3.166
2nd-1.882
3rd-1.296
4th-0.972
5th-0.738
JDM STI-RA
1st - 3.083
2nd - 2.062
3rd - 1.545
4th - 1.151
5th - 0.825
USDM WRX
1st - 3.454
2nd - 1.947
3rd - 1.366
4th - 0.972
5th - 0.738
