[Huskymaniac]

Originally Posted by XT6Wagon

Forester STi 6spd still uses a 3.90 final drive. Your thinking of the FXT 5spd manual thats a 4.44 final drive.

Having owned one, I can truely say the gear ratios in the 04-06 STi boxes are flat stupid for USDM STi engines. Likely the same for a 400hp EG33 unless it does so by murdering the low and midrange power. (non forced induction).

1st is imo simply too short for a 400hp STi. I'd love to see a 6spd with full STi diff package and the Spec B gear ratios... and a 3.545 final drive. Either that or 4.11's and a good carbon/carbon twinplate clutch for 2nd gear launches.

Anyhoo, 6spd ratios from

http://www.rs25.com/forums/f8/t10004...ts-ratios.html

All-Wheel-Drive 6-speed Transmissions
3.636 / 2.375 / 1.761 / 1.346 / 1.061 / 0.842 / 3.900FD
- JDM Impreza WRX Spec C/STi/STi Spec C RA/V-Limted/S202/S203/S204/Spec C RA-R
- AUS Impreza WRX STi

3.636 / 2.235 / 1.521 / 1.137 / 0.971 / 0.756 / 3.900FD
- USDM 2007-current Impreza WRX STi

3.636 / 2.375 / 1.761 / 1.346 / 0.971 / 0.756 / 3.900FD
- USDM 2004-2006 Impreza WRX STi
- UK/Europe/NZ Impreza WRX STi
- JDM Legacy 3.0R Spec B

3.636 / 2.235 / 1.521 / 1.137 / 0.891 / 0.707 / 3.900FD
- USDM 2007-current Legacy 2.5GT Spec B
- JDM Forester STi

Thanks for that information. From what I have dug up, the JDM Forester STi has 3.9FD and the Forester XT has 4.111.