STi RA Close Ratio Gearsets

Assembled by RalliSpec, the close ratio gears from the STi RA feature strengthened and hardened components for improved reliability of the 5MT in modified Imprezas. The gearsest have cryo-treated 1st-4th gears for even further improvements in reliability at high power levels. Each gearset includes all necessary gears for installation including a custom speedometer gear (3.9 final drive ratio only).

Now REM Treated for increased strength.

Professional installation is recommended.

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

This kit contains the following:

STI RA Main Shaft

STI RA 1st Driven Gear

STI RA 2nd Driven Gear

STI RA 3rd Drive Gear

STI RA 4th Drive Gear

STI RA 3rd/4th Driven Gear Cluster

STI RA 5th Drive Gear

STI RA 5th Driven Gear

3rd/4th Shift Fork Rod

3rd/4th synchro hub set

4th gear baulk ring

4th Gear Thrust Washer

Lock Nut, Main Shaft

Lock Nut, Pinion Shaft

Lock Nut, Driven Shaft

Oil Seal, Main Shaft

Custom Steel Speedometer Gear

(Calibrated for 3.9 Final Drive)

Case Gasket

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