Developed from OEM GC8 STI gearbox components as an economical gearset upgrade for the Subaru 5-speed transmission. Not as close ratio as the Type RA kit and 4th and 5th gear ratios match the WRX meaning highway rpms and fuel economy will be unaffected. REM ISF® treatment is included as standard. Base kit includes gear kit with required custom metal 3.90 speedometer gear (4.44 plastic speedo gear available by special request). Applications prior to MY08 require the purchase of the appropriate separate install kit to include the correct parts for installation.
Gear Ratios: 3.166 / 1.882 / 1.296 / 0.972 / 0.738
Usually ships in 2 to 3 days.